A closed automatic pressing device and a container including the device

Abstract

The present invention discloses a closed automatic pressing device and a container including the device, comprising a pressing support, a pressing block, a connecting piece, and an elastic piece; a through hole is provided in the center of the pressing support, the lower outer ring of the pressing support is inserted in the pressing block, the connecting piece is inserted in the through hole and the bottom of the connecting piece extends to the center hole at the bottom of the pressing block, the elastic piece is sleeved on the outer ring of the connecting piece, the top of the elastic piece presses against the inner ring of the pressing support, and the bottom presses against the outer ring of the center hole at the bottom of the pressing block, the outer ring of the pressing block is provided with an inverted cone surface that contacts the workpiece, and the pressing block can move up and down relative to the pressing support under the action of the elastic piece or external force.

Description

Technical Field

[0001] The present invention relates to the field of closed containers, and in particular to a closed automatic pressing device and a container comprising the device. Background Art

[0002] Closed-type clamping devices are used above closed containers to compress and secure materials placed inside. Materials are typically in the form of bundles, preventing them from being knocked, bumped, or damaged, which could affect their use. Traditional clamping methods typically involve adding a motor drive mechanism above the container, converting electrical energy into mechanical energy to achieve compression. However, this method takes up a lot of space and is not suitable for equipment or products with limited space. Furthermore, adding this device to the container head can compromise its airtightness, often requiring additional sealing. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a closed automatic pressing device and a container including the device, which is more practical for certain working conditions or equipment with limited space and can achieve automatic pressing without manual operation.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] In the first aspect, an embodiment of the present invention provides a closed automatic pressing device, including a pressing support, a pressing block, a connecting piece, and an elastic piece; a through hole is provided in the center of the pressing support, the lower outer ring of the pressing support is inserted in the pressing block, the connecting piece is inserted in the through hole and the bottom of the connecting piece extends to the center hole at the bottom of the pressing block, the elastic piece is sleeved on the outer ring of the connecting piece, the top of the elastic piece presses against the inner ring of the pressing support, and the bottom presses against the outer ring of the center hole at the bottom of the pressing block, the outer ring of the pressing block is provided with an inverted cone surface that contacts the workpiece, and the pressing block can move up and down relative to the pressing support under the action of the elastic piece or external force.

[0006] As a further technical solution, the upper portion of the compression support is fixedly connected with a connecting tube, and the connecting tube is connected to the cover of the container through a fastener.

[0007] As a further technical solution, the clamping support is T-shaped, the upper part of the clamping support is a rectangular plate, and the lower part is a cylindrical block, and the through hole is arranged along the central axis of the rectangular plate and the cylindrical block.

[0008] As a further technical solution, a circle of protrusions is provided on the inner wall of the through hole, and the top of the elastic member presses against the protrusions.

[0009] As a further technical solution, the pressing block is in an inverted T-shape, with a cylindrical upper portion and an irregular lower portion, and the inverted conical surface is provided on the outer ring of the pressing block at the lower portion.

[0010] As a further technical solution, a first hole cooperating with the lower part of the clamping support is provided at the upper and lower parts of the clamping block, and a second hole cooperating with the connecting piece is provided at the lower center position of the clamping block, and the first hole and the second hole are coaxially arranged.

[0011] As a further technical solution, a guide groove is further provided on the upper side wall of the pressing block, and the guide groove passes through the side wall. The guide groove cooperates with the guide pin to limit the rotation of the pressing block around its axis.

[0012] In a second aspect, an embodiment of the present invention further provides a container, which includes a container body and a cover body, and a plurality of the closed automatic pressing devices are provided at the bottom of the cover body.

[0013] The beneficial effects of the above embodiments of the present invention are as follows:

[0014] 1. This clamping device is installed at the bottom of the container cover. It is more practical for certain working conditions or equipment with limited space. It can realize automatic clamping without manual operation, and has a simple structure and can be large or small in size.

[0015] 2. For closed containers, this pressing device is installed inside the container and will not destroy the closed environment required for the internal materials.

[0016] 3. The compacting device has a long service life and does not require frequent maintenance;

[0017] 4. The manufacturing cost of this pressing device is low, and there is basically no maintenance cost in the later stage.

[0018] 5. The pressing stroke, installation height, pressing force, etc. of this pressing device can be adjusted according to actual working conditions, and it has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 This is a schematic diagram of the pressing device proposed by the present invention in use;

[0021] Figure 2 yes Figure 1 AA section view;

[0022] Figure 3 This is a schematic diagram of the state where the pressing device and the rod bundle are not in contact;

[0023] Figure 4 Schematic diagram of the contact state between the pressing device and the rod bundle;

[0024] Figure 5 Schematic diagram of the state where the rod bundle is compressed by the pressing device;

[0025] Figure 6 This is the force analysis diagram of the compression block during the rod bundle compression process;

[0026] Figure 7 It is an axial side schematic diagram of the clamping device;

[0027] Figure 8 It is a forward schematic diagram of the clamping device;

[0028] Figure 9 yes Figure 8 AA cross-sectional view.

[0029] In the figure: 1 door, 2 pressing support, 2-1 connecting cylinder, 3 first connecting screw, 4 compression spring, 5 pressing block, 6 rod bundle, 7 chuck, 8 second connecting screw, 9 container cylinder, 10 guide groove, 11 guide pin. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise clearly indicated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprising" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations;

[0032] For the convenience of description, if the words "upper" and "lower" appear in the present invention, they only indicate that they are consistent with the up, down, and directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0033] As introduced in the background technology, in order to solve the shortcomings existing in the prior art, the present invention proposes a closed automatic pressing device; it includes a pressing support, a pressing block, a connecting piece, and an elastic piece; a through hole is provided in the center of the pressing support, the lower outer ring of the pressing support is inserted in the pressing block, the connecting piece is inserted in the through hole and the bottom of the connecting piece extends to the center hole at the bottom of the pressing block, the elastic piece is sleeved on the outer ring of the connecting piece, the top of the elastic piece presses against the inner ring of the pressing support, and the bottom presses against the outer ring of the center hole at the bottom of the pressing block, the outer ring of the pressing block is provided with an inverted cone surface in contact with the workpiece, and the pressing block can move up and down relative to the pressing support under the action of the elastic piece or external force.

[0034] In a typical embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 、 Figure 8 As shown, this embodiment discloses a closed automatic clamping device, which is attached to the chuck centering mechanism and mainly includes a clamping support 2, a clamping block 5, a first connecting screw 3, and a compression spring 4 (corresponding to the previous elastic member); wherein, the clamping support 2 is an overall T-shaped structure, the upper part of the clamping support 2 is a rectangular plate, and the lower part is a cylindrical block, a through hole is provided in the center of the clamping support 2, and the through hole is provided along the central axis of the rectangular plate and the cylindrical block; further, the clamping block 5 is an inverted T-shape, the upper part of which is cylindrical and the lower part is irregular, an inverted cone surface is provided on the outer ring of the lower part of the clamping block 5, and the inverted cone surface cooperates with the workpiece, a first hole is provided on the upper and lower parts of the clamping block 5 to cooperate with the lower part of the clamping support 2, and a second hole is provided at the lower center position of the clamping block 5 to cooperate with the first connecting screw 3, the first hole and the second hole are coaxially arranged, the second hole is a through hole, and the diameter of the second hole is smaller than that of the first hole.

[0035] The lower outer ring of the above-mentioned clamping support 2 is inserted in the clamping block 5, the first connecting screw 3 is inserted in the through hole and the bottom of the connecting piece extends to the center hole at the bottom of the clamping block 5, and the compression spring 4 is sleeved on the outer ring of the first connecting screw 3. The top of the compression spring 4 presses against the inner ring of the clamping support 2, and the bottom presses against the outer ring of the center hole at the bottom of the clamping block 5. The outer ring of the clamping block 5 is provided with an inverted cone surface that contacts the workpiece. Under the action of the compression spring 4 or external force, the clamping block 5 can move up and down relative to the clamping support 2.

[0036] The upper rectangular plate of the above-mentioned pressing support 2 is a connecting portion, and a connecting portion is provided on the top of the rectangular plate and connected to the bottom of the door 1 of the container through other connecting parts.

[0037] Furthermore, in this embodiment, a circle of protrusions is provided on the inner wall of the through hole, and the top of the compression spring 4 is pressed against the protrusions to limit the top of the compression spring 4.

[0038] Furthermore, in this embodiment, a guide groove 10 is provided on the upper side wall of the pressing block 5 . The guide groove 10 passes through the side wall. The guide groove 10 cooperates with the guide pin 11 to limit the rotation of the pressing block 5 around its axis.

[0039] Furthermore, the pressing block 5 is usually made of a soft material, such as PTFE.

[0040] The above-mentioned pressing device is in use as follows Figure 1 、 Figure 2 As shown, it includes nine parts: door 1, clamping support 2, first connecting screw 3, compression spring 4, clamping block 5, rod bundle 6, chuck 7, second connecting screw 8 and container cylinder 9; among them, door 1 and chuck 7 constitute the upper cover part, and three clamping devices are provided, and the three clamping devices are fixed at the bottom of door 1. When door 1 is partially closed, the internal cavity of container cylinder 9 forms a closed state. The ordinary clamping method is to add a motor assembly on the outside and connect the transmission part to extend into the cavity, but this method will destroy the closed environment inside the cavity, which is not conducive to the storage and placement of certain substances. In this embodiment, the clamping is achieved by the cooperation of the clamping device and the rod bundle 6, and the clamping block 5 of the clamping device is generally selected from plastic and copper materials. The hardness of such materials is relatively low, which can ensure that the device can be clamped without damaging the surface of the workpiece during operation. The specific materials used should be based on the properties of the materials placed inside and the working environment.

[0041] The compression spring 4 in this embodiment is calculated based on the required pressing force and working stroke. The pressing force cannot be too large to avoid increasing the running resistance of the chuck mechanism or causing damage to the material.

[0042] The working principle of the above-mentioned clamping device can be briefly described as follows: the outer conical arc surface at the bottom of the clamping block 5 and the compression spring 4 are used to achieve the clamping. The working diagram of the clamping device is as follows: Figure 3 、 Figure 4 、 Figure 5 As shown, Figure 3 Indicates the state where the clamping block 5 is not in contact with the rod bundle 6. At this time, due to the compression force of the compression spring 4, the clamping block 5 is stretched open. When the distance value L2 in the figure reaches the maximum value, L2max is the maximum stroke of the clamping device, and L1 is the distance between the bottom surface of the clamping block 5 and the top surface of the compressed rod bundle 6. It should be ensured that L2max>L1 in the initial state.

[0043] When the pressing device runs to Figure 4When the rod cluster 6 is in the position, the inverted conical surface of the pressing block 5 contacts the rod cluster 6. Due to the combined effect of the inverted conical surface and the combined motion, the pressing block 5 will overcome the friction force Ff of the inverted conical surface and the elastic force Ft of the compression spring and move along the direction of V2. At this time, the rod cluster 6 is affected by the force of the compression spring 4 and is compressed. The specific force diagram is shown in FIG. Figure 6 As shown: Without considering the influence of the bending moment M on the pressing block 5, the force analysis of the plane force system is performed on it. The force diagram is shown above. Assuming that V is constant, we have:

[0044]

[0045] It represents the friction force of the compression block 5 on the rod bundle 6.

[0046] Indicates the pressing force of the pressing block 5 on the rod bundle 6. When the mechanism runs to the compressed state shown in the right figure, The direction will be perpendicular to the contact surface and vertically downward, so the magnitude of the elastic force Ft of the compression spring 4 can be calculated.

[0047] The clamping device runs to Figure 5 When the clamping block 5 is in the position, the bottom end surface of the clamping block 5 contacts the top surface of the rod bundle 6, and the rod bundle 6 is compressed by the elastic force of the compression spring 4. In order to prevent the clamping block 5 from rotating around its axis during the compression process, affecting the compression effect and increasing wear, a rotation-stopping structure should be provided. Figure 7 、 Figure 8 、 Figure 9 As shown, a guide groove 10 is defined on the upper sidewall of the pressure block 5. A guide pin 11 is horizontally inserted into the guide groove 10 and presses against the pressure support 2. The guide pin 11 and the guide groove 10 preferably have a clearance fit to ensure smooth sliding. The initial compression amount and installation distance of the compression spring 4 and the first connecting screw 3 are adjusted to ensure that the guide pin 11 remains within the guide groove 10 throughout the entire vertical movement of the pressure block 5.

[0048] It should be understood that, assuming that the main structure of the compression block 5 is an annular structure, the centripetal side is the inner side and the centrifugal side is the outer side. Based on this basic orientation, the inner and outer sides in the present invention are accurately defined.

[0049] It should be understood that the entire pressing device is a top-bottom structure, which serves as the top-bottom reference system in the present invention.

[0050] This embodiment further provides a container, wherein the container includes the aforementioned pressing device. Since the container is provided with the aforementioned pressing device, the container also has all the advantages described above.

[0051] Finally, it should be noted that relational terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A closed automatic pressing device, characterized in that: It includes a clamping support, a clamping block, a connecting piece, and an elastic piece; a through hole is provided in the center of the clamping support, the lower outer ring of the clamping support is inserted in the clamping block, the connecting piece is inserted in the through hole and the bottom of the connecting piece extends to the center hole at the bottom of the clamping block, the elastic piece is sleeved on the outer ring of the connecting piece, the top of the elastic piece presses against the inner ring of the clamping support, and the bottom presses against the outer ring of the center hole at the bottom of the clamping block, the outer ring of the clamping block is provided with an inverted cone surface that contacts the workpiece, and the clamping block can move up and down relative to the clamping support under the action of the elastic piece.

2. The closed automatic pressing device according to claim 1, characterized in that: The upper part of the pressing support is fixedly connected with a connecting cylinder, and the connecting cylinder is connected with the cover body of the container through a fastener.

3. The closed automatic pressing device according to claim 1, characterized in that: The pressing support is T-shaped, the upper part of the pressing support is a rectangular plate, the lower part is a cylindrical block, and the through hole is arranged along the central axis of the rectangular plate and the cylindrical block.

4. The closed automatic pressing device according to claim 1, characterized in that: A circle of protrusions is provided on the inner wall of the through hole, and the top of the elastic member presses against the protrusions.

5. The closed automatic pressing device according to claim 1, characterized in that: The pressing block is in an inverted T-shape, with a cylindrical upper portion and an irregular lower portion. The inverted conical surface is arranged on the outer ring of the pressing block at the lower portion.

6. The closed automatic pressing device according to claim 1, characterized in that: A first hole cooperating with the lower part of the pressing support is provided on the upper and lower parts of the pressing block, and a second hole cooperating with the connecting piece is provided at the lower center position of the pressing block. The first hole and the second hole are coaxially arranged.

7. The closed automatic pressing device according to claim 1, characterized in that: A guide groove is also provided on the upper side wall of the pressing block. The guide groove passes through the side wall. The guide groove cooperates with the guide pin to limit the rotation of the pressing block around its axis.

8. A container comprising a container body and a cover, characterized in that: At least one closed automatic pressing device according to any one of claims 1 to 7 is provided at the bottom of the cover.

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