Specification piece quick-changing device for vacuum attenuation leak detection equipment and vacuum attenuation leak detection equipment with same

Abstract

The utility model discloses a specification piece quick-change device for vacuum attenuation leak detection equipment and the vacuum attenuation leak detection equipment with the same. The specification piece quick-change device comprises a hollow detection frame, a lifting mechanism, a profiling block and a quick-change component, wherein the bottom end of the detection frame is provided with an opening so as to be hermetically connected with a mounting seat; the lifting mechanism is connected with the detection frame; a limiting groove is formed in the inner wall face of the detection frame, and the quick-change component is used for being retracted into the profiling block under the extrusion action of the inner wall face of the detection frame when the detection frame descends and further used for automatically stretching out to be bounced into the limiting groove to lock the profiling block and the detection frame when the limiting groove is aligned with the quick-change component. Part of the structure of the quick-change component further extends out of the profiling block so as to drive the quick-change component to return into the profiling block under the action of external force. When the quick-changing device is used, operation tools such as a wrench are not needed in the whole copying block specification part changing process, mounting and dismounting operations are simple and quick, the detection efficiency can be greatly improved, and meanwhile the labor intensity of detection personnel is reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging container production and packaging technology, and in particular, to a quick-change device for standard parts in a vacuum decay leak detection device. Furthermore, this utility model also relates to a vacuum decay leak detection device including the aforementioned quick-change device for standard parts in a vacuum decay leak detection device. Background Technology

[0002] In the packaging production process of food and pharmaceuticals, airtightness testing is an essential quality control step. One method for airtightness testing is vacuum decay testing. Vacuum decay testing involves evacuating a sealed container and judging whether there is a leak based on the change in pressure difference. Online detection to achieve rapid sealing of the container is a crucial part of vacuum testing.

[0003] Vacuum decay testing uses vacuum decay leak detection equipment. This equipment is frequently used to test non-circular, irregularly shaped packaging containers. These irregular containers need to be placed inside a contour block, which in turn needs to be installed in the testing frame of the leak detection equipment. Different packaging containers require different contour block specifications.

[0004] In existing technologies, profiling blocks are typically fixed to the inner wall of the detection frame using screws or other connectors. Disassembly requires tools such as wrenches to remove the profiling blocks from the detection frame. Because a vacuum is required inside the detection frame, when the profiling blocks are installed, the screws and other connectors can only be fixed to the inner cavity of the detection frame, and cannot penetrate the outer wall. Therefore, the installation and disassembly of the profiling blocks are difficult, time-consuming, and labor-intensive. Furthermore, a leak detection device typically requires 40-50 detection frames simultaneously, resulting in lengthy installation and disassembly times for the profiling blocks, significantly impacting detection efficiency and increasing the workload for workers. Utility Model Content

[0005] This utility model provides a quick-change device for standard parts in a vacuum attenuation leak detection device and a vacuum attenuation leak detection device having the same, in order to solve the technical problems of difficult installation and disassembly operations, which are time-consuming and labor-intensive when replacing existing profile blocks, thus seriously affecting detection efficiency and increasing the labor intensity of workers.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A quick-change device for a vacuum attenuation leak detection equipment includes: a hollow detection frame with an open bottom for sealing connection with a mounting base; a lifting mechanism connected to the detection frame to drive its up-and-down movement; a contour block for clamping and positioning a packaging container to be tested; and a quick-change component connected to the contour block and elastically telescopically oriented. The inner wall of the detection frame has a recessed limiting groove. The quick-change component is used to retract into the contour block under the pressure of the inner wall of the detection frame when the detection frame descends and is fitted onto the outer circle of the contour block. The quick-change component is also used to automatically extend and spring into the limiting groove to lock the contour block and the detection frame when the limiting groove aligns with the limiting groove during the descent of the detection frame. A portion of the quick-change component extends out of the contour block so that it can retract into the contour block when subjected to external force.

[0008] Furthermore, the outer wall of the contour block is provided with a first mounting hole extending inwardly at a vertical angle, and the bottom end of the opening of the contour block is provided with a second mounting hole extending inwardly and communicating with the first mounting hole; the quick-change component includes a retaining pin that is slidably installed in the first mounting hole along the axial direction of the first mounting hole, an elastic element installed in the first mounting hole and axially limited between the bottom of the first mounting hole and the retaining pin, and a push rod located in the second mounting hole and vertically connected to the retaining pin; the retaining pin is elastically installed in the first mounting hole under the action of the elastic element.

[0009] Furthermore, the retaining shaft includes a large-diameter section whose outer diameter matches the inner diameter of the mounting hole, and a small-diameter section that is axially connected to the large-diameter section and has an outer diameter smaller than the outer diameter of the large-diameter section; the elastic element is a spring, which is mounted on the outer circle of the small-diameter section and its two ends respectively abut against the shoulder at the connection position between the small-diameter section and the large-diameter section and the bottom of the first mounting hole.

[0010] Furthermore, the first mounting hole is a polygonal hole with a polygonal cross-section; the large-diameter section is a polygonal section adapted to the polygonal hole, and a guide slope is machined on the protruding end of the large-diameter section extending outward from the first mounting hole. The guide slope gradually extends outward along the direction of the detection frame's downward insertion.

[0011] Furthermore, the first mounting hole is a circular hole with a circular cross-section; the large-diameter section is a circular section adapted to the circular hole, and a guide arc surface is machined on the extended end of the large-diameter section extending outward from the first mounting hole. The guide arc surface gradually tilts outward along the direction of the detection frame's downward insertion and is arc-shaped in the circumferential direction; the push rod is a polygonal rod with a polygonal cross-section, and the lateral width of the push rod perpendicular to the sliding direction of the locking shaft is adapted to the lateral width of the second mounting hole to restrict the rotation of the locking shaft.

[0012] Furthermore, the longitudinal width of the second mounting hole along the sliding direction of the retaining shaft is greater than the longitudinal width of the push rod, so that when the retaining shaft retracts into the first mounting hole, the push rod does not abut against or interfere with the inner wall of the second mounting hole.

[0013] Furthermore, there are two sets of quick-change components, which are arranged opposite to each other; there are two limiting slots, which correspond to the two sets of quick-change components.

[0014] Furthermore, there are two sets of quick-change components, which are arranged opposite to each other; the limiting groove is an annular groove that extends inward in the circumferential direction.

[0015] Furthermore, the bottom of the opening of the detection frame is provided with a mounting ring groove that is recessed inward in the circumferential direction; the quick-change device for the standard parts of the vacuum attenuation leak detection equipment also includes a sealing ring that is locked in the mounting ring groove, and a quick-release clamp for detachably fixing the detection frame and the mounting base. The quick-release clamp is installed on the outer circle of the connection between the detection frame and the mounting base; when the quick-change component is locked into the limiting groove, the bottom ends of the contour block and the push rod are both retracted into the detection frame.

[0016] According to another aspect of the present invention, a vacuum attenuation leak detection device is also provided, having a quick-change device for standard parts of a vacuum attenuation leak detection device as described in any of the above.

[0017] This utility model has the following beneficial effects:

[0018] When using the quick-change device for standard parts of this utility model, the lifting mechanism is first activated to lift the detection frame upwards, facilitating the movement of the conforming block holding the packaging container to be tested. Once the conforming block reaches the set position, the lifting mechanism is activated to lower the detection frame downwards. As the detection frame falls, its inner wall surface abuts against the extended quick-change component, causing the quick-change component to retract into the conforming block under force. The detection frame continues to fall, and when the upper limit groove of the detection frame aligns with the quick-change component, the resisting force applied to the quick-change component by the inner wall surface of the detection frame disappears, and the quick-change component retracts within itself. Under the action of elastic force, it automatically extends and springs into the corresponding limiting groove, thereby locking the contour block and the detection frame. When changing contour blocks of different specifications, only force is applied to the part of the quick-change component that extends out of the contour block to make the quick-change component retract into the contour block. Then, the lifting mechanism can be activated to easily lift the detection frame upward to replace the new contour block. During the entire process of changing contour block specifications, no wrench or other operating tools are needed. The installation and disassembly operations are simple, quick, time-saving, and labor-saving, greatly improving the detection efficiency and effectively reducing the labor intensity of the detection personnel.

[0019] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the main cross-sectional structure of the quick-change device for the standard parts of the vacuum attenuation leak detection equipment according to a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the left-side view structure.

[0023] Legend:

[0024] 1. Detection frame; 101. Limiting groove; 102. Mounting ring groove;

[0025] 2. Upgrade the organization;

[0026] 3. Packaging containers;

[0027] 4. Contouring block; 401. First mounting hole; 402. Second mounting hole;

[0028] 5. Quick-change components; 51. Shaft retainer; 510. Guide ramp; 52. Elastic element; 53. Push rod. Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0030] Reference Figure 1-2 A preferred embodiment of this utility model provides a quick-change device for a vacuum attenuation leak detection device, comprising: a hollow detection frame 1 with an open bottom for sealing connection with a mounting base; a lifting mechanism 2 connected to the detection frame 1 to drive the detection frame 1 to move up and down; a contour block 4 for clamping and positioning a packaging container 3 to be tested; and a quick-change component 5 connected to the contour block 4 and elastically telescopically arranged. The inner wall of the detection frame 1 has a recessed limiting groove 101. The quick-change component 5 is used to retract into the contour block 4 under the squeezing action of the inner wall of the detection frame 1 when the detection frame 1 descends and is fitted onto the outer circle of the contour block 4. The quick-change component 5 is also used to automatically extend and spring into the limiting groove 101 to lock the contour block 4 and the detection frame 1 when the limiting groove 101 aligns with the quick-change component 5 during the descent of the detection frame 1. A portion of the quick-change component 5 extends out of the contour block 4 so that it can retract into the contour block 4 when subjected to external force.

[0031] When using the quick-change device for standard parts of this utility model, the lifting mechanism 2 is first activated to lift the detection frame 1 upwards, facilitating the entry and exit of the contour block 4 holding the packaging container 3 to be tested. Once the contour block 4 enters the set position, the lifting mechanism 2 is activated to drive the detection frame 1 downwards. As the detection frame 1 falls, its inner wall surface abuts against the extended quick-change component 5, causing the quick-change component 5 to be forcefully retracted into the contour block 4. The detection frame 1 continues to fall. When the upper limit groove 101 of the detection frame 1 aligns with the quick-change component 5, the abutting force applied to the quick-change component 5 by the inner wall surface of the detection frame 1 disappears, and the quick-change component... 5. Under its own elastic force, it automatically extends and springs into the corresponding limiting groove 101, thereby locking the contour block 4 and the detection frame 1. When replacing contour blocks 4 of different specifications, it is only necessary to apply force to extend part of the contour block 4 so that the quick-change component 5 retracts into the contour block 4. Then, the lifting mechanism 2 can be activated to easily lift the detection frame 1 to replace the new contour block 4. During the entire process of replacing contour block specifications, no wrench or other operating tools are needed. The installation and disassembly operations are simple and quick, saving time and effort, greatly improving the detection efficiency, and effectively reducing the labor intensity of the detection personnel.

[0032] Optionally, in this utility model, the lifting mechanism 2 adopts the lifting mechanism in the existing patent application No. 2024218528247, a differential pressure sealing detection device and medicine bottle packaging equipment, or it can be an existing lifting mechanism.

[0033] Optionally, such as Figure 1 As shown, the outer wall of the contour block 4 is vertically provided with a first mounting hole 401 extending inward, and the bottom end of the opening of the contour block 4 is provided with a second mounting hole 402 extending inward and communicating with the first mounting hole 401. The quick-change component 5 includes a retaining shaft 51 slidably installed in the first mounting hole 401 along the axial direction of the first mounting hole 401, an elastic member 52 installed in the first mounting hole 401 and axially limited between the bottom of the hole in the first mounting hole 401 and the retaining shaft 51, and a push rod 53 located in the second mounting hole 402 and vertically connected to the retaining shaft 51. The retaining shaft 51 is elastically installed in the first mounting hole 401 under the action of the elastic member 52. Figure 1As shown, when the detection frame 1 descends, its inner wall abuts against the extended end of the retaining shaft 51, causing the retaining shaft 51 to retract into the first mounting hole 401 under the action of the elastic element 52, thus avoiding interference with the descent of the detection frame 1. When the limiting groove 101 of the detection frame 1 aligns with the retaining shaft 51, the retaining shaft 51 slides out along the axial direction of the first mounting hole 401 and inserts into the limiting groove 101 under the elastic force of the elastic element 52, thereby locking the contour block 4 and the detection frame 1. When replacing the contour block 4 with a new specification, the push rod 53 is applied to drive the retaining shaft 51 backward, causing the retaining shaft 51 to exit the limiting groove 101. At this time, the detection frame 1 moves upward under the action of the lifting mechanism 2, and the contour block 4 can be easily removed from the detection frame 1. Throughout the entire operation, no wrench or other operating tools are required, making the operation convenient, quick, time-saving, and labor-saving.

[0034] Optionally, such as Figure 1 As shown, the retaining shaft 51 includes a large-diameter section whose outer diameter matches the inner diameter of the mounting hole, and a small-diameter section axially connected to the large-diameter section, with an outer diameter smaller than that of the large-diameter section. The elastic element 52 is a spring, which is mounted on the outer circle of the small-diameter section, and its two ends respectively abut against the shoulder at the connection position between the small-diameter section and the large-diameter section and the bottom of the first mounting hole 401. In this optional solution, this structural design of the retaining shaft 51 simplifies its overall structure and facilitates the installation of the elastic element 52.

[0035] Preferably, in the first embodiment of the card shaft 51, as shown below... Figure 1 As shown, the first mounting hole 401 is a polygonal hole with a polygonal cross-section. The large-diameter section is a polygonal section adapted to the polygonal hole. A guide slope 510 is machined on the extended end of the large-diameter section extending outward from the first mounting hole 401. The guide slope 510 gradually slopes outward along the downward insertion direction of the detection frame 1. In this preferred embodiment, the guide slope 510 is used to guide the detection frame 1 to fit onto the outer circle of the contour block 4, so as to easily fit the detection frame 1. The fit between the large-diameter section and the first mounting hole 401 is designed to prevent the retaining shaft 51 from rotating under the action of the detection frame 1, thereby affecting the insertion of the retaining shaft 51 into the limiting groove 101.

[0036] Preferably, in the second embodiment of the retaining shaft 51 (not shown in the figure), the first mounting hole 401 is a circular hole with a circular cross-section. The large-diameter section is a circular section adapted to the circular hole, and a guide arc surface is machined on the extended end of the large-diameter section extending outward from the first mounting hole 401. The guide arc surface gradually slopes outward along the downward insertion direction of the detection frame 1 and is arc-shaped in the circumferential direction. The push rod 53 is a polygonal rod with a polygonal cross-section. The lateral width of the push rod 53, which is perpendicular to the sliding direction of the retaining shaft 51, is adapted to the lateral width of the second mounting hole 402 to restrict the rotation of the retaining shaft 51. In this preferred embodiment, the guide arc surface is used to guide the detection frame 1 to be fitted onto the outer circle of the contour block 4, so as to easily fit the detection frame 1; the large diameter section and the first mounting hole 401 are configured to limit and guide the sliding of the retaining shaft 51, so that the retaining shaft 51 can be accurately inserted into or removed from the limiting groove 101; the push rod 53 and the second mounting hole 402 are configured to prevent the retaining shaft 51 from rotating under the action of the detection frame 1, thereby affecting the insertion of the retaining shaft 51 into the limiting groove 101.

[0037] Preferably, such as Figure 1 As shown, the longitudinal width of the second mounting hole 402 along the sliding direction of the retaining shaft 51 is greater than the longitudinal width of the push rod 53, so that when the retaining shaft 51 retracts into the first mounting hole 401, the push rod 53 does not abut against the inner wall of the second mounting hole 402 and interfere. That is, it ensures that the retaining shaft 51 can be completely retracted into the second mounting hole 402 under the action of the push rod 53, so as to avoid interference between the retaining shaft 51 and the inner wall surface of the detection frame 1, thereby affecting the insertion and removal of the detection frame 1.

[0038] In this optional embodiment, the first embodiment of the limiting groove 101 has two sets of quick-change components 5, which are arranged opposite to each other. There are two limiting grooves 101, corresponding to the two sets of quick-change components 5. In this optional embodiment, the processing of the limiting groove 101 is simple and does not affect the overall strength and rigidity of the detection frame 1.

[0039] In this optional embodiment, the second embodiment of the limiting groove 101 has two sets of quick-change components 5, which are arranged opposite to each other. The limiting groove 101 is an annular groove extending inward in the circumferential direction. In this optional embodiment, the limiting groove 101 extends into an annular groove in the circumferential direction, so that regardless of the angular position of the detection frame 1 relative to the contour block 4, the locking shafts 51 of the two sets of quick-change components 5 can be accurately and quickly inserted into the limiting groove 101 during the descent of the detection frame 1.

[0040] Optionally, such as Figure 1As shown, the bottom of the opening of the detection frame 1 is also provided with a mounting ring groove 102 that is recessed inward along the circumference. The quick-change device for the standard parts of the vacuum attenuation leak detection equipment also includes a sealing ring that is locked in the mounting ring groove 102, and a quick-release clamp for detachably fixing the detection frame 1 and the mounting base. The quick-release clamp is installed on the outer circle of the connection between the detection frame 1 and the mounting base. When the quick-change component 5 is locked into the limiting groove 101, the bottom ends of the contour block 4 and the push rod 53 are both retracted into the detection frame 1. In this optional solution, the structure of the detection frame 1 is simple, and a sealing ring is provided between the detection frame 1 and the mounting base. At the same time, the detection frame 1 and the mounting base are detachably fixed by the external quick-release clamp, which not only makes the installation and disassembly of the detection frame 1 and the mounting base simple, but also, through the action of the quick-release clamp, the detection frame 1 and the mounting base are pulled axially relative to each other, thereby pressing the sealing ring, improving the reliability of the seal between the detection frame 1 and the mounting base, and preventing leakage of the detection frame 1.

[0041] Optionally, a preferred embodiment of this utility model also relates to a vacuum attenuation leak detection device, which has a quick-change device for standard parts of the vacuum attenuation leak detection device as described above. Thus, when using the vacuum attenuation leak detection device of this utility model, no wrench or other operating tools are needed during the entire process of changing the standard parts of the profiling block. The installation and disassembly operations are simple and quick, saving time and effort, greatly improving the detection efficiency, and effectively reducing the labor intensity of the testing personnel.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change device for standard parts in a vacuum decay leak detection equipment, characterized in that, include: A hollow detection frame (1) with an open bottom for sealing connection with the mounting base, a lifting mechanism (2) connected to the detection frame (1) to drive the detection frame (1) to move up and down, a contour block (4) for clamping and positioning the packaging container (3) to be tested, and a quick-change component (5) connected to the contour block (4) and elastically telescopically arranged. The inner wall of the detection frame (1) is provided with a recessed limiting groove (101). The quick-change component (5) is used to be squeezed into the contour block (4) by the inner wall of the detection frame (1) when the detection frame (1) is lowered and fitted onto the outer circle of the contour block (4). The quick-change component (5) is also used to automatically extend into the limiting groove (101) to lock the contour block (4) and the detection frame (1) when the limiting groove (101) is aligned with the quick-change component (5) during the descent of the detection frame (1). A part of the quick-change component (5) extends out of the contour block (4) so ​​that when subjected to external force, the quick-change component (5) can be driven to retract into the contour block (4).

2. The quick-change device for standard parts in the vacuum attenuation leak detection equipment according to claim 1, characterized in that, The outer side wall of the contour block (4) is provided with a first mounting hole (401) that extends inwardly and is recessed. The bottom end of the opening of the contour block (4) is provided with a second mounting hole (402) that extends inwardly and is connected to the first mounting hole (401). The quick-change component (5) includes a retaining shaft (51) slidably mounted in the first mounting hole (401) along the axial direction of the first mounting hole (401), an elastic member (52) mounted in the first mounting hole (401) and axially limited between the bottom of the hole and the retaining shaft (51), and a push rod (53) located in the second mounting hole (402) and vertically connected to the retaining shaft (51); The retaining pin (51) is elastically installed in the first mounting hole (401) under the action of the elastic element (52).

3. The quick-change device for standard parts in the vacuum decay leak detection equipment according to claim 2, characterized in that, The clasp (51) includes a large-diameter section whose outer diameter is adapted to the inner diameter of the mounting hole, and a small-diameter section that is axially connected to the large-diameter section and whose outer diameter is smaller than the outer diameter of the large-diameter section; The elastic element (52) is a spring, which is installed on the outer circle of the small diameter section, and its two ends respectively abut against the shoulder of the connection position between the small diameter section and the large diameter section and the bottom of the first mounting hole (401).

4. The quick-change device for standard parts in the vacuum decay leak detection equipment according to claim 3, characterized in that, The first mounting hole (401) is a polygonal hole with a polygonal cross-section; The large-diameter section is a polygonal section that fits the polygonal hole. A guide slope (510) is machined on the extended end of the large-diameter section that extends outward from the first mounting hole (401). The guide slope (510) gradually extends outward along the direction of the detection frame (1) as it descends and fits in.

5. The quick-change device for standard parts in the vacuum decay leak detection equipment according to claim 3, characterized in that, The first mounting hole (401) is a circular hole with a circular cross-section; The large-diameter section is a circular section that fits the circular hole. The large-diameter section has a guide arc surface machined on the extended end of the first mounting hole (401). The guide arc surface gradually tilts outward along the direction of the detection frame (1) and is arc-shaped in the circumferential direction. The push rod (53) is a polygonal rod with a polygonal cross-section. The lateral width of the push rod (53) perpendicular to the sliding direction of the locking shaft (51) is adapted to the lateral width of the second mounting hole (402) to limit the rotation of the locking shaft (51).

6. The quick-change device for standard parts in the vacuum decay leak detection equipment according to claim 2, characterized in that, The longitudinal width of the second mounting hole (402) along the sliding direction of the locking shaft (51) is greater than the longitudinal width of the push rod (53), so that when the locking shaft (51) retracts into the first mounting hole (401), the push rod (53) does not abut against the inner wall of the second mounting hole (402) and interfere.

7. The quick-change device for standard parts in the vacuum attenuation leak detection equipment according to claim 1, characterized in that, The number of quick-change components (5) is two sets, and the two sets of quick-change components (5) are arranged opposite to each other; There are two limiting grooves (101), and the two limiting grooves (101) correspond to two sets of quick-change components (5).

8. The quick-change device for standard parts in the vacuum decay leak detection equipment according to claim 1, characterized in that, The number of quick-change components (5) is two sets, and the two sets of quick-change components (5) are arranged opposite to each other; The limiting groove (101) is an annular groove that extends inward in the circumferential direction.

9. The quick-change device for standard parts in the vacuum decay leak detection equipment according to claim 1, characterized in that, The bottom of the opening of the detection frame (1) is also provided with a mounting ring groove (102) that is recessed inward along the circumference; The quick-change device for the standard parts of the vacuum decay leak detection equipment also includes a sealing ring that is locked in the mounting ring groove (102) and a quick-release clamp for detachably fixing the detection frame (1) and the mounting base. The quick-release clamp is installed on the outer circle of the connection between the detection frame (1) and the mounting base. When the quick-change component (5) is inserted into the limiting groove (101), the bottom ends of the contour block (4) and the push rod (53) are both retracted into the detection frame (1).

10. A vacuum decay leak detection device, characterized in that, The device includes a quick-change device for standard parts of a vacuum decay leak detection equipment as described in any one of claims 1-9.

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