A quality inspection equipment for spring rebound detection of a baffle on a stick in an umbrella

By designing a quality inspection device for the spring clips in umbrellas, a motor drives a sliding rod to reciprocate, simulating the opening and closing process of an umbrella. This solves the problems of uneven force application and low efficiency in manual inspection, and achieves highly efficient automated inspection.

CN224365733UActive Publication Date: 2026-06-16LANQI PRECISION MACHINERY (HUBEI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANQI PRECISION MACHINERY (HUBEI) CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In traditional umbrellas, the quality inspection of the spring mechanism relies on manual testing, which suffers from uneven force application, high labor intensity, and low efficiency.

Method used

A quality inspection device was designed, including a workbench, a fixed sleeve, a slide bar, and a drive device. The slide bar is driven by a motor to move the movable sleeve in a horizontal reciprocating motion, simulating the force state of the spring sheet during the opening and closing of an umbrella. The deformation of the spring sheet can be observed in real time through an observation hole, thus realizing automated inspection.

Benefits of technology

It enables uniform simulation of the stress state of the shrapnel and observation of its deformation, improving detection efficiency and reducing fatigue and errors caused by manual operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224365733U_ABST
    Figure CN224365733U_ABST
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Abstract

The utility model relates to a kind of quality inspection equipment for the springback detection of spring in umbrella middle stick, including workbench, fixed sleeve, sliding rod and driving device, the right side of the fixed sleeve is fixedly connected with support seat, the support seat is fixedly connected on the right side of workbench upper surface, the central part of the fixed sleeve upper surface is equipped with mounting hole, the sliding rod is slidably connected on the upper surface of workbench, the end of the sliding rod close to fixed sleeve is fixedly connected with movable sleeve, the center of the movable sleeve and fixed sleeve is in the same plane, the driving device is fixedly connected on the upper surface of workbench and close to the side of sliding rod, for driving sliding rod reciprocating motion along horizontal direction;The utility model is driven movable sleeve to carry out horizontal reciprocating motion by being equipped with driving device, so that movable sleeve can constantly press spring and loosen spring, simulates the real scene when umbrella is received and released.
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Description

Technical Field

[0001] This utility model relates to the technical field of umbrella quality inspection equipment, specifically a quality inspection device for detecting the rebound of the spring sheet on the umbrella's central rod. Background Technology

[0002] In the umbrella manufacturing industry, the center spring assembly is the core component of the umbrella rib opening and closing mechanism. Its elastic performance directly determines the service life and smooth operation of the umbrella. Traditional umbrella manufacturing mainly relies on manual visual inspection and manual rebound test for the quality inspection of the center spring assembly. Operators need to repeatedly press the spring to observe its reset state and judge whether there are defects such as jamming, displacement or elasticity decay through experience.

[0003] The manual spring-pressing test method cannot effectively simulate the pressure applied to the spring when an umbrella is opened and closed because the pressure applied each time is not constant. In addition, the work method of repeatedly pressing the spring with fingers is labor-intensive, has high repetition, and it is not easy to control the pressure of each press. It is easy to get tired after working for a long time, which delays work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quality inspection device for detecting the rebound of spring clips on the middle rod of an umbrella, which solves the problems of unsatisfactory results and low work efficiency when manually pressing for testing.

[0005] This utility model discloses a quality inspection device for detecting the rebound of a spring clip on an umbrella rod. The device includes a workbench, a fixed sleeve, a sliding rod, and a driving device. A support base is fixedly connected to the right side of the fixed sleeve, and the support base is fixedly connected to the right side of the upper surface of the workbench. An mounting hole is provided in the center of the upper surface of the fixed sleeve. The sliding rod is slidably connected to the upper surface of the workbench. A movable sleeve is fixedly connected to one end of the sliding rod near the fixed sleeve, and the centers of the movable sleeve and the fixed sleeve are on the same plane. The driving device is fixedly connected to the upper surface of the workbench and to the side near the sliding rod, and is used to drive the sliding rod to reciprocate horizontally.

[0006] As a further improvement of this utility model, the driving device includes a driving part and a transmission part. The driving part includes a fixed plate, which is fixedly connected to the left side of the upper surface of the workbench and close to the center. A first connecting plate is fixedly connected to the right side of the fixed plate. A motor is installed on the back of the first connecting plate. The output end of the motor passes through the front of the first connecting plate and is fixedly connected to a turntable. A driving rod is fixedly connected to the edge of the front of the turntable.

[0007] As a further improvement of this utility model, the transmission part includes a second connecting plate and a sector gear. The second connecting plate is fixedly connected to the upper surface of the workbench and is located near the right side of the fixed plate. A connecting column is fixedly connected to the front of the second connecting plate. The sector gear is rotatably connected to the connecting column. A connecting arm is integrally formed on the top of the sector gear. An oblong hole is opened in the middle of the connecting arm. The drive rod is inserted into the inside of the oblong hole.

[0008] As a further improvement of this utility model, a rack is provided in the middle of the upper surface of the slide bar, and the sector gear is located directly above the rack, and the sector gear meshes with the rack.

[0009] As a further improvement of this utility model, two bases are fixedly connected to the upper surface of the workbench and near the left side of the fixed sleeve. Each of the two bases has a sliding groove in the middle, and the sliding rod is slidably connected between the two sliding grooves.

[0010] As a further improvement of this utility model, observation holes are provided on both sides of the upper surface of the fixed sleeve near the mounting hole.

[0011] As a further improvement of this utility model, baffles are fixedly connected to the left and right sides of the inner wall of the fixed sleeve near the bottom, and a limit post is fixedly connected to the center of the lower surface of the baffle.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, through the installation holes, baffles, and limiting posts on the fixed sleeve, facilitates the insertion of the spring sheet into the fixed sleeve by the operator. Both ends of the spring sheet can be inserted below the baffle, simulating the environment of a spring installed inside the umbrella's central rod. A sliding rod on the worktable, along with a movable sleeve mounted on it, and a drive device, cause the movable sleeve to reciprocate horizontally. This allows the movable sleeve to continuously press and release the spring, simulating the real-world scenario of opening and closing the umbrella. This mechanical structure not only reproduces the linear pressure during actual umbrella opening and closing but also allows for observation of the spring sheet's deformation recovery under cyclic load through the observation holes on the fixed sleeve, effectively solving the problems of uneven force application and distorted simulation of working conditions inherent in manual inspection. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram showing the positional relationship between the fixed sleeve, slide bar, and driving device of this utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixing sleeve of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the slide bar of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the drive unit of this utility model;

[0020] Figure 6 This is a schematic diagram of the three-dimensional structure of the sector gear of this utility model;

[0021] Figure 7 A front sectional view of the structure when the spring sheet is installed inside the fixed sleeve;

[0022] Figure 8 This is a front cross-sectional view of the structure during testing of this utility model;

[0023] Figure 9 This is a schematic diagram of the three-dimensional structure of a spring sheet in the prior art.

[0024] In the diagram: 1. Workbench; 2. Fixed sleeve; 201. Mounting hole; 202. Baffle; 203. Limiting post; 204. Observation hole; 205. Support base; 3. Movable sleeve; 4. Base; 5. Slide rod; 501. Rack; 6. Fixed plate; 7. First connecting plate; 8. Motor; 9. Turntable; 10. Drive rod; 11. Second connecting plate; 12. Connecting post; 13. Sector gear; 14. Connecting arm; 15. Waist-shaped hole. Detailed Implementation

[0025] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0028] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Please see Figure 1-9 This utility model discloses a quality inspection device for detecting the rebound of the spring clip on the umbrella's central rod. It includes a workbench 1, a fixed sleeve 2, a sliding rod 5, and a driving device. A support base 205 is fixedly connected to the right side of the fixed sleeve 2, which is also fixedly connected to the right side of the upper surface of the workbench 1. An installation hole 201 is provided in the center of the upper surface of the fixed sleeve 2. The sliding rod 5 is slidably connected to the upper surface of the workbench 1. A movable sleeve 3 is fixedly connected to one end of the sliding rod 5 near the fixed sleeve 2. The driving device is fixedly connected to the upper surface of the workbench 1 and to the side near the sliding rod 5, used to drive the sliding rod 5 to reciprocate horizontally. The centers of the movable sleeve 3 and the fixed sleeve 2 are on the same plane. When the movable sleeve 3 moves horizontally, the fixed sleeve 2 can be inserted into the interior of the movable sleeve 3, simulating the installation environment of the umbrella's central rod and the stress state of the spring clip during umbrella use.

[0030] In some other embodiments, two bases 4 are fixedly connected to the upper surface of the workbench 1 and near the left side of the fixed sleeve 2. Each base 4 has a groove in the middle. The slide rod 5 is slidably connected between the two grooves. The arrangement of the two bases 4 forms a double-point support structure, which ensures that the slide rod 5 does not deflect when it moves, and gives the slide rod 5 better movement stability.

[0031] Please see Figure 6 The driving device includes a driving part and a transmission part. The driving part includes a fixed plate 6, which is fixedly connected to the left side of the upper surface of the workbench 1 and close to the center. A first connecting plate 7 is fixedly connected to the right side of the fixed plate 6. A motor 8 is installed on the back of the first connecting plate 7. The output end of the motor 8 passes through the front of the first connecting plate 7 and is fixedly connected to a turntable 9. A driving rod 10 is fixedly connected to the edge of the front of the turntable 9.

[0032] The transmission unit includes a second connecting plate 11 and a sector gear 13. The second connecting plate 11 is fixedly connected to the upper surface of the workbench 1 and is located near the right side of the fixed plate 6. A connecting post 12 is fixedly connected to the front of the second connecting plate 11. The sector gear 13 is rotatably connected to the connecting post 12. A connecting arm 14 is integrally formed on the top of the sector gear 13. A waist-shaped hole 15 is opened in the middle of the connecting arm 14. The drive rod 10 is inserted into the inside of the waist-shaped hole 15. A rack 501 is provided in the middle of the upper surface of the slide rod 5. The sector gear 13 is located directly above the rack 501 and meshes with the rack 501.

[0033] Through the above technical solution, when the motor 8 drives the turntable 9 to rotate at a set speed, it can drive the drive rod 10 to slide in the waist-shaped hole 15 of the connecting arm 14, converting the circular motion into the pendulum motion of the sector gear 13. The meshing transmission between the sector gear 13 and the rack 501 of the slide rod 5 converts the pendulum into the horizontal linear motion of the slide rod 5, thereby driving the movable sleeve 3 to continuously perform reciprocating motion in the horizontal direction. When the movable sleeve 3 moves to the right with the slide rod 5, its inner wall will apply a balanced pressure to the spring piece, simulating the state of spring compression. When the movable sleeve 3 reaches the right limit position, it will move to the left, causing the spring to release, simulating the opening and closing action of the umbrella rib.

[0034] In this embodiment, observation holes 204 are provided on the upper surface of the fixed sleeve 2 and on both sides near the mounting hole 201. Baffles 202 are fixedly connected to the left and right sides of the inner wall of the fixed sleeve 2 and near the bottom. A limit post 203 is fixedly connected to the center of the lower surface of the baffle 202.

[0035] At the start of the test, the staff first inserts the two sides of the spring sheet to be tested into the mounting holes 201 of the fixed sleeve 2 at an angle, so that the two sides of the spring sheet are engaged under the two baffles 202. The limiting post 203 automatically corrects the initial position of the spring sheet. The operator can confirm whether the spring sheet is installed properly through the observation hole 204. Then, the motor 8 is turned on, so that the movable sleeve 3 reciprocates in the horizontal direction, continuously pressing the spring sheet to test whether the performance of the spring sheet is qualified.

[0036] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this 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 principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A quality inspection device for detecting the rebound of a spring clip on a umbrella's central rod, characterized in that, include Workbench (1); A fixed sleeve (2) is fixedly connected to a support base (205) on the right side of the fixed sleeve (2). The support base (205) is fixedly connected to the right side of the upper surface of the workbench (1). An installation hole (201) is opened in the center of the upper surface of the fixed sleeve (2). The slide rod (5) is slidably connected to the upper surface of the workbench (1). A movable sleeve (3) is fixedly connected to one end of the slide rod (5) near the fixed sleeve (2). The center of the movable sleeve (3) and the fixed sleeve (2) are on the same plane. The driving device is fixedly connected to the upper surface of the workbench (1) and close to the side of the slide bar (5), and is used to drive the slide bar (5) to reciprocate in the horizontal direction.

2. The quality inspection equipment for detecting the rebound of the spring sheet on the umbrella's central rod according to claim 1, characterized in that, The driving device includes a driving part and a transmission part. The driving part includes a fixed plate (6). The fixed plate (6) is fixedly connected to the left side of the upper surface of the workbench (1) and close to the center. A first connecting plate (7) is fixedly connected to the right side of the fixed plate (6). A motor (8) is installed on the back of the first connecting plate (7). The output end of the motor (8) passes through the front of the first connecting plate (7) and is fixedly connected to a turntable (9). A driving rod (10) is fixedly connected to the edge of the front of the turntable (9).

3. The quality inspection equipment for detecting the rebound of the spring sheet on the middle rod of an umbrella according to claim 2, characterized in that, The transmission unit includes a second connecting plate (11) and a sector gear (13). The second connecting plate (11) is fixedly connected to the upper surface of the workbench (1) and is located near the right side of the fixed plate (6). A connecting column (12) is fixedly connected to the front of the second connecting plate (11). The sector gear (13) is rotatably connected to the connecting column (12). A connecting arm (14) is integrally formed on the top of the sector gear (13). A waist-shaped hole (15) is opened in the middle of the connecting arm (14). The drive rod (10) is inserted into the inside of the waist-shaped hole (15).

4. The quality inspection equipment for detecting the rebound of the spring sheet on the umbrella's central rod according to claim 3, characterized in that, A rack (501) is provided in the middle of the upper surface of the slide bar (5), and the sector gear (13) is located directly above the rack (501). The sector gear (13) meshes with the rack (501).

5. The quality inspection equipment for detecting the rebound of a spring clip on an umbrella's central rod according to claim 1, characterized in that, Two bases (4) are fixedly connected to the upper surface of the workbench (1) and near the left side of the fixed sleeve (2). The middle of the two bases (4) is provided with a sliding groove, and the sliding rod (5) is slidably connected between the two sliding grooves.

6. The quality inspection equipment for detecting the rebound of the spring sheet on the middle rod of an umbrella according to claim 1, characterized in that, Observation holes (204) are provided on the upper surface of the fixed sleeve (2) and on both sides near the mounting hole (201).

7. The quality inspection equipment for detecting the rebound of a spring clip on a central rod of an umbrella according to claim 1, characterized in that, Baffles (202) are fixedly connected to the left and right sides of the inner wall of the fixed sleeve (2) and near the bottom. A limit post (203) is fixedly connected to the center of the lower surface of the baffle (202).