A self-rescuer calibrator

Abstract

The utility model relates to a self-rescuer inspection technical field discloses a kind of self-rescuer calibrators, including shell, the code scanning window is arranged on the shell outer wall, the shell upper surface is provided with display screen, the sealed storehouse is opened in the shell inside, the push-out assembly is arranged in the sealed storehouse inside, the shell upper surface is provided with sealing assembly, the push-out assembly includes pressing plate and spring one, the sealed storehouse inner wall bottom is provided with connecting pipe, lower clamping block and upper clamping block, the upper clamping block inner wall is slidably connected with connecting rod, the connecting rod outer wall is fixedly connected with clamping rod, the clamping rod is arranged between lower clamping block and upper clamping block, the spring one is arranged in connecting pipe inside, the connecting rod upper surface is fixedly connected with pressing plate. In the utility model, after self-rescuer is placed into sealed storehouse, pressing plate is pressed down, connecting rod drives clamping rod to move down, spring one is compressed and stored energy, when clamping rod passes upper clamping block, spring one rebounds and pushes clamping rod to be clamped into the limiting space formed by lower clamping block and upper clamping block, forms stable self-locking, when taking out, it can be automatically popped up by only slightly pressing.

Description

Technical Field

[0001] This utility model relates to the field of self-rescue device testing technology, and in particular to a self-rescue device calibrator. Background Technology

[0002] As a key emergency equipment in high-risk workplaces such as mines and fire stations, the airtightness and operational reliability of self-rescue devices are directly related to the life safety of users. To ensure that self-rescue devices are always in a usable state, it is necessary to regularly use a calibrator to test their sealing performance. An efficient and reliable self-rescue device calibrator is of great significance to ensuring the effectiveness of the equipment.

[0003] Existing self-rescue device calibrators typically use a purely manual positioning and fixing method. During operation, the self-rescue device must be completely placed into the testing chamber, and then the external locking mechanism is operated to close the sealed chamber until the external locking mechanism is fully effective. After the test is completed, the unlocking components are operated in reverse order to remove the self-rescue device.

[0004] However, this design has a significant flaw in the self-rescue device removal process. After the test is completed, the operator must first release the external locking mechanism. Then, because there is no auxiliary push-out structure inside the chamber, the self-rescue device is often tightly embedded in the bottom of the test chamber. The operator must insert their fingers into the narrow chamber and forcefully pry or shake the self-rescue device to remove it. This process is not only laborious and time-consuming, but also prone to damaging the sealing components on the surface of the self-rescue device due to improper force application, which further aggravates operator fatigue in continuous batch testing scenarios. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a self-rescue device calibrator, which aims to improve the problem of inconvenient removal of self-rescue devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-rescue device calibrator, comprising a housing, a barcode scanning window provided on the outer wall of the housing, a display screen provided on the upper surface of the housing, a sealed chamber provided inside the housing, an ejection component provided inside the sealed chamber, and a sealing component provided on the upper surface of the housing;

[0007] The ejection assembly includes a pressure plate and a spring. A connecting pipe is fixedly connected to the bottom of the inner wall of the sealed chamber. A lower locking block is fixedly connected to the inner wall of the connecting pipe. An upper locking block is fixedly connected to the inside of the connecting pipe. A connecting rod is slidably connected to the inner wall of the upper locking block. A locking rod is fixedly connected to the outer wall of the connecting rod. The locking rod is located between the lower locking block and the upper locking block. The spring is located inside the connecting pipe. One end of the spring is fixedly connected to the lower surface of the connecting rod. The lower surface of the pressure plate is fixedly connected to the upper surface of the connecting rod.

[0008] Furthermore, the sealing assembly includes a retaining post, a sealing port, an annular groove, and a sealing ring. The lower surface of the sealing port is fixedly connected to the upper surface of the housing. The annular groove is formed on the outer wall of the sealing port. A sealing cover is provided on the outer wall of the sealing port. The outer wall of the retaining post is slidably connected to the inner wall of the sealing cover. The upper surface of the sealing ring is fixedly connected to the lower surface of the sealing cover.

[0009] Furthermore, a threaded rod is provided inside the sealing cover, and a handwheel is fixedly connected to one end of the threaded rod.

[0010] Furthermore, a connecting ring is threaded onto the outer wall of the threaded rod, and a wedge block is fixedly connected to the lower surface of the connecting ring.

[0011] Furthermore, the outer wall of the inclined block is slidably connected to one end of the locking post, and the other end of the locking post is disposed inside the annular groove.

[0012] Furthermore, a second spring is sleeved on the outer wall of the locking post, and one end of the second spring is fixedly connected to the inner wall of the sealing cover.

[0013] Furthermore, a handle is provided on the outer wall of the housing.

[0014] Furthermore, a switch is provided on the outer wall of the housing.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, after the self-rescue device is placed in the sealed chamber, the lower pressure plate drives the connecting rod to move the locking rod downward. The spring is compressed and stores energy. When the locking rod passes the upper locking block, the spring rebounds and pushes the locking rod into the limiting space formed by the lower locking block and the upper locking block, forming a stable self-locking. This process can be completed by pressing with one hand to fix the self-rescue device. When taking it out, only a light press is needed to make it automatically pop up, which is convenient and quick to take out.

[0017] 2. In this utility model, rotating the handwheel drives the threaded rod to advance, driving the inclined block to radially press multiple locking pins, so that the ends of the locking pins are embedded in the annular groove of the sealing port to achieve rigid locking. At the same time, the sealing ring moves down with the sealing cover to press the sealing cover tightly to form a double seal. When the handwheel is rotated in the opposite direction, the spring pushes the locking pins to reset and release the locking. This design completes the locking and sealing actions simultaneously through a single handwheel rotation operation, which greatly improves the sealing reliability and is simple and labor-saving to operate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a self-rescue device calibrator proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the sealed chamber structure of a self-rescue device calibrator proposed in this utility model;

[0020] Figure 3This is a schematic diagram of the ejection component structure of a self-rescue device calibrator proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing component structure of a self-rescue device calibrator proposed in this utility model;

[0022] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0023] Legend:

[0024] 1. Housing; 2. Handle; 3. Switch; 4. Scanning window; 5. Display screen; 6. Sealing cover; 7. Handwheel; 8. Sealing chamber; 9. Connecting pipe; 10. Lower locking block; 11. Upper locking block; 12. Connecting rod; 13. Pressure plate; 14. Locking rod; 15. Spring 1; 16. Threaded rod; 17. Connecting ring; 18. Inclined block; 19. Locking post; 20. Spring 2; 21. Sealing port; 22. Annular groove; 23. Sealing ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-5This utility model provides an embodiment of a self-rescue device calibrator, comprising a housing 1. The outer wall of the housing 1 has a barcode scanning window 4 made of a light-transmitting and scratch-resistant material for quickly identifying the self-rescue device's identity information. A display screen 5 is located on the upper surface of the housing 1, displaying real-time airtightness test data for easy reading by the operator. A sealed chamber 8 is provided inside the housing 1, forming a sealed testing space. An ejection component is located inside the sealed chamber 8, enabling one-handed fixation and one-button ejection of the self-rescue device. A sealing component is located on the upper surface of the housing 1, providing double sealing protection to effectively prevent leakage during the testing process. The ejection component includes... The sealing chamber 8 includes a pressure plate 13 and a spring 15. A connecting pipe 9 is fixedly connected to the bottom of the inner wall of the sealing chamber 8 to constrain the displacement path of the internal components. A lower locking block 10 and an upper locking block 11 are fixedly connected to the inner wall of the connecting pipe 9 to form a limiting groove. An upper locking block 11 is fixedly connected inside the connecting pipe 9. The upper locking block 11 has a guide slope to guide the locking rod 14 for engagement. A connecting rod 12 is slidably connected to the inner wall of the upper locking block 11 to control the displacement trajectory of the locking rod 14. The locking rod 14 is fixedly connected to the outer wall of the connecting rod 12 and is positioned between the lower locking block 10 and the upper locking block 11. The spring 15 is located inside the connecting pipe 9. Provides rebound force to ensure the self-rescue device ejects. One end of spring 15 is fixedly connected to the lower surface of connecting rod 12 to increase the force-bearing area. The lower surface of pressure plate 13 is fixedly connected to the upper surface of connecting rod 12. The sealing assembly includes a locking post 19, a sealing port 21, an annular groove 22, and a sealing ring 23, which work together to achieve mechanical hard locking and flexible soft sealing. The lower surface of sealing port 21 is fixedly connected to the upper surface of housing 1. The annular groove 22 is formed on the outer wall of sealing port 21. A sealing cover 6 is provided on the outer wall of sealing port 21. The outer wall of locking post 19 is slidably connected to the inner wall of sealing cover 6. The upper surface of sealing ring 23 is fixedly connected to the sealing cover 6. On the lower surface of the cover 6, a threaded rod 16 is provided inside the cover 6 to convert rotational motion into linear propulsion. A handwheel 7 is fixedly connected to one end of the threaded rod 16, and a connecting ring 17 is threadedly connected to the outer wall of the threaded rod 16. An inclined block 18 is fixedly connected to the lower surface of the connecting ring 17. The outer wall of the inclined block 18 is slidably connected to one end of the locking post 19. The other end of the locking post 19 is set inside the annular groove 22 to achieve mechanical locking. A second spring 20 is sleeved on the outer wall of the locking post 19 to provide a reset elastic force. One end of the second spring 20 is fixedly connected to the inner wall of the cover 6. A handle 2 is provided on the outer wall of the housing 1, and a switch 3 is provided on the outer wall of the housing 1.

[0027] Working Principle: When using this self-rescue device calibrator, the operator first holds the device through the handle 2 on the outer wall of the housing 1, presses the switch 3 on the outer wall of the housing 1 to start the system, scans the self-rescue device's identification code through the barcode scanning window 4 on the outer wall of the housing 1, the calibrator automatically pressurizes the sealed chamber 8 and displays the airtightness test data in real time on the display screen 5 on the upper surface of the housing 1, then places the self-rescue device to be tested into the sealed chamber 8 through the sealing port 21 on the upper surface of the housing 1, and presses down on the pressure plate 13 with one hand, driving the connecting rod 12 to slide inside the connecting tube 9 fixed at the bottom of the sealed chamber 8, causing the locking rod 14 to move down along the inner wall of the upper locking block 11 inside the connecting tube 9, compressing the spring 15 to store energy. When the locking rod 14 passes the upper locking block 11, the spring 15 rebounds and pushes the locking rod 14 into the connecting tube 9. The limiting space formed by the lower locking block 10 and the upper locking block 11 of the wall realizes the mechanical self-locking fixation of the self-rescuer. Then, rotating the handwheel 7 drives the threaded rod 16 to advance axially, driving the inclined block 18 below the connecting ring 17 to radially squeeze multiple locking pins 19, so that the ends of the locking pins 19 are embedded in the annular groove 22 on the outer wall of the sealing port 21 to achieve hard locking. At the same time, the sealing cover 6 moves down to make the sealing ring 23 press the sealing port 21 to form a double seal. After the test is completed, rotating the handwheel 7 in the opposite direction drives the inclined block 18 to reset. The second spring 20 pushes the locking pins 19 to disengage from the annular groove 22 to release the lock. Finally, gently pressing the self-rescuer causes the pressure plate 13 to press down, driving the locking rod 14 to disengage from the limiting space inside the connecting tube 9. The first spring 15 releases its elastic force to push the connecting rod 12 to move upward inside the connecting tube 9. The pressure plate 13 automatically pushes the self-rescuer out of the sealing chamber 8, realizing quick removal with one hand.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-rescue device calibrator, comprising a housing (1), characterized in that: The outer wall of the housing (1) is provided with a barcode scanning window (4), the upper surface of the housing (1) is provided with a display screen (5), the inside of the housing (1) is provided with a sealed chamber (8), the inside of the sealed chamber (8) is provided with an ejection component, and the upper surface of the housing (1) is provided with a sealing component. The ejection assembly includes a pressure plate (13) and a spring (15). A connecting pipe (9) is fixedly connected to the bottom of the inner wall of the sealing chamber (8). A lower locking block (10) is fixedly connected to the inner wall of the connecting pipe (9). An upper locking block (11) is fixedly connected inside the connecting pipe (9). A connecting rod (12) is slidably connected to the inner wall of the upper locking block (11). A locking rod (14) is fixedly connected to the outer wall of the connecting rod (12). The locking rod (14) is located between the lower locking block (10) and the upper locking block (11). The spring (15) is located inside the connecting pipe (9). One end of the spring (15) is fixedly connected to the lower surface of the connecting rod (12). The lower surface of the pressure plate (13) is fixedly connected to the upper surface of the connecting rod (12).

2. The self-rescue device calibrator according to claim 1, characterized in that: The sealing assembly includes a retaining post (19), a sealing port (21), an annular groove (22), and a sealing ring (23). The lower surface of the sealing port (21) is fixedly connected to the upper surface of the housing (1). The annular groove (22) is formed on the outer wall of the sealing port (21). A sealing cover (6) is provided on the outer wall of the sealing port (21). The outer wall of the retaining post (19) is slidably connected to the inner wall of the sealing cover (6). The upper surface of the sealing ring (23) is fixedly connected to the lower surface of the sealing cover (6).

3. The self-rescue device calibrator according to claim 2, characterized in that: The sealing cover (6) has a threaded rod (16) inside, and a handwheel (7) is fixedly connected to one end of the threaded rod (16).

4. The self-rescue device calibrator according to claim 3, characterized in that: The threaded rod (16) has a connecting ring (17) threaded to its outer wall, and a wedge block (18) is fixedly connected to the lower surface of the connecting ring (17).

5. A self-rescue device calibrator according to claim 4, characterized in that: The outer wall of the inclined block (18) is slidably connected to one end of the locking post (19), and the other end of the locking post (19) is set inside the annular groove (22).

6. A self-rescue device calibrator according to claim 2, characterized in that: A second spring (20) is fitted on the outer wall of the locking post (19), and one end of the second spring (20) is fixedly connected to the inner wall of the sealing cover (6).

7. A self-rescue device calibrator according to claim 1, characterized in that: A handle (2) is provided on the outer wall of the housing (1).

8. A self-rescue device calibrator according to claim 1, characterized in that: A switch (3) is provided on the outer wall of the housing (1).

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