Portable verification support for pressure module

Abstract

The utility model relates to the technical field of pressure detection equipment, in particular to a portable calibration bracket for a pressure module, which improves the stability of a calibration process. Comprising a support body which comprises a base and a supporting frame, and the supporting frame is fixedly installed on the base; the pressurizing mechanism comprises a pressurizing handle, a pressurizing cylinder, a piston, a change-over switch, a pressure stabilizing valve, a fine adjustment part and a pressure output interface, the pressurizing handle is connected with the piston in the pressurizing cylinder through a lever structure, the change-over switch is arranged at the output end of the pressurizing cylinder, the pressure stabilizing valve is connected with the output end of the change-over switch, and the fine adjustment part is arranged at the output end of the pressure stabilizing valve; the pressure output interface is connected with the fine tuning piece; the suction cup assembly comprises at least two suction cups, and each suction cup is movably connected with the base through a connecting piece.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure testing equipment, and in particular to a portable calibration bracket for a pressure module. Background Technology

[0002] A pressure module is a device or component used to measure, convert, and process pressure signals, and it is widely used in many fields such as industrial production and scientific research. To ensure the measurement accuracy of the pressure module, it needs to be calibrated regularly using a pressure calibration bracket.

[0003] The pressure calibration bracket uses a lever principle to drive the piston inside the pressure cylinder to reciprocate, generating pressure or vacuum. The pressure or vacuum is output through a switching switch, passing through a pressure regulating valve to the fine-tuning and pressure output interface. It is used in conjunction with a pressure standard to complete the calibration and testing of the pressure module.

[0004] In pursuit of portability, existing calibration stands often use thin and lightweight materials and simple structures. This makes the stand prone to shaking and displacement during the use of the pressure handle, affecting the calibration operation. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a portable calibration bracket for a pressure module to improve the stability of the calibration process.

[0006] This utility model discloses a portable calibration bracket for a pressure module, comprising:

[0007] The main body of the bracket includes a base and a support frame, with the support frame fixedly installed on the base;

[0008] The pressurization mechanism includes a pressurization handle, a pressurization cylinder, a piston, a switch, a pressure regulating valve, a fine-tuning component, and a pressure output interface. The pressurization handle is connected to the piston inside the pressurization cylinder via a lever structure. The switch is located at the output end of the pressurization cylinder. The pressure regulating valve is connected to the output end of the switch. The fine-tuning component is located at the output end of the pressure regulating valve. The pressure output interface is connected to the fine-tuning component.

[0009] The suction cup assembly includes at least two suction cups, each of which is movably connected to the base via a connector.

[0010] Furthermore, the suction cup is a vacuum suction cup, and the surface of the suction cup is provided with an anti-slip rubber layer.

[0011] Furthermore, the connector includes a connector base and a retaining ring. The connector base is fixedly installed on the bottom of the base, and the top edge of the suction cup is provided with an annular protrusion. The retaining ring fixes the protrusion to the edge of the connector base.

[0012] Furthermore, a lifting rod is provided at the top center of the suction cup, and through holes corresponding to the lifting rod are provided on both the connecting seat and the base. The lifting rod passes through the through holes and is connected to a lifting component.

[0013] Furthermore, the pressure handle is equipped with an anti-slip sleeve, and the surface of the anti-slip sleeve is provided with anti-slip texture.

[0014] Furthermore, the pressure cylinder is fixedly mounted on the support frame via a mounting base, and a shock-absorbing pad is provided between the mounting base and the support frame.

[0015] Furthermore, a quick-connect head is provided at the pressure output interface.

[0016] Furthermore, the fine-tuning component includes a fine-tuning knob and a fine-tuning screw. The fine-tuning screw is connected to the output end of the pressure regulating valve, and the fine-tuning knob is fixedly connected to the fine-tuning screw.

[0017] Furthermore, it also includes a storage box filled with cushioning blocks, and the cushioning blocks have grooves that correspond to the support body, the pressure mechanism and the suction cup assembly.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The suction cup in the suction cup assembly contacts and adheres to the placement surface, enhancing the stability of the calibration stand and preventing it from shaking or shifting during the use of the pressure handle, thereby ensuring the stability of the calibration operation and improving calibration accuracy.

[0020] 2. The pressure handle is equipped with an anti-slip sleeve and has an anti-slip texture, which increases the friction when the operator holds it, prevents the hand from slipping, makes it more comfortable and safe to use, and improves the convenience of operation. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the storage box structure of this utility model;

[0025] The attached diagram is labeled as follows: 1. Main body of the bracket; 11. Base; 12. Support frame; 2. Pressurizing mechanism; 21. Pressurizing handle; 211. Anti-slip sleeve; 22. Pressurizing cylinder; 221. Mounting seat; 222. Shock-absorbing pad; 24. Switch; 25. Pressure regulating valve; 26. Fine-tuning component; 261. Fine-tuning knob; 262. Fine-tuning screw; 27. Pressure output interface; 271. Quick connector; 3. Suction cup assembly; 31. Suction cup; 311. Anti-slip rubber layer; 312. Protrusion; 32. Connector; 321. Connecting seat; 322. Snap ring; 33. Lifting rod; 34. Lifting component; 4. Storage box. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0027] like Figures 1 to 3 As shown, a portable calibration bracket for a pressure module according to this utility model includes:

[0028] The main body of the bracket 1 includes a base 11 and a support frame 12, with the support frame 12 fixedly installed on the base 11;

[0029] The pressurizing mechanism 2 includes a pressurizing handle 21, a pressurizing cylinder 22, a piston, a switching switch 24, a pressure regulating valve 25, a fine-tuning component 26, and a pressure output interface 27. The pressurizing handle 21 is connected to the piston inside the pressurizing cylinder 22 through a lever structure. The switching switch 24 is located at the output end of the pressurizing cylinder 22. The pressure regulating valve 25 is connected to the output end of the switching switch 24. The fine-tuning component 26 is located at the output end of the pressure regulating valve 25. The pressure output interface 27 is connected to the fine-tuning component 26.

[0030] The suction cup assembly 3 includes at least two suction cups 31, each suction cup 31 being movably connected to the base 11 via a connector 32;

[0031] The main body 1 of the support is made of lightweight materials, making it easy to move when needed. The components of the pressurizing mechanism 2 are compactly arranged and have a simple overall structure, saving space and facilitating storage when moving, thus meeting the portable needs of pressure module calibration in different scenarios. The suction cup assembly 3 enhances the stability of the calibration support. In actual use, after placing the calibration support on the operating surface, downward pressure is applied to the suction cup 31. The part of the suction cup 31 in contact with the operating surface deforms, squeezing out the internal air and creating a relatively vacuum area between the inside of the suction cup 31 and the operating surface. Due to the external atmosphere... The pressure is much greater than the pressure inside the suction cup 31. According to the principle of pressure difference, atmospheric pressure will press the suction cup 31 tightly onto the operating surface. Multiple suction cups 31 work together to provide suction force at different positions. When the pressure handle 21 is used, the pressure handle 21 drives the piston inside the pressure cylinder 22 to reciprocate. During this process, the suction force of the suction cup 31 resists the force of the pressure handle 21, ensuring that the bracket body 1 is firmly fixed on the operating surface and avoiding shaking or displacement of the bracket during operation. This provides a stable and reliable operating platform for the pressure module calibration work and effectively guarantees the accuracy and reliability of the calibration results.

[0032] The suction cup 31 is a vacuum suction cup, and its surface is provided with an anti-slip rubber layer 311. The vacuum suction cup works based on the principle of vacuum adsorption. When the suction cup comes into contact with the placement surface, the air inside the suction cup 31 is expelled by pressing or other means, creating a relative vacuum environment inside. Under the pressure difference between the external atmospheric pressure and the internal pressure of the suction cup 31, the suction cup 31 will be tightly adsorbed onto the placement surface. Rubber itself has a high coefficient of friction. When the vacuum suction cup 31 is adsorbed onto the surface, the anti-slip rubber layer 311 is in direct contact with the surface. Its rough surface increases the friction between it and the surface. When external factors attempt to cause the calibration bracket to shift or shake, the anti-slip rubber layer 311 can effectively resist such external forces, preventing relative sliding between the suction cup and the surface, and further enhancing the stability of the fixation.

[0033] The preferred connector 32 includes a connector 321 and a retaining ring 322. The connector 321 is fixedly installed on the bottom of the base 11. The top edge of the suction cup 31 is provided with an annular protrusion 312. The retaining ring 322 fixes the protrusion 312 to the edge of the connector 321. The connector 321 is securely connected to the base 11 by welding, bolting, or other means, ensuring that the connection between the connector 321 and the base 11 will not easily loosen during subsequent use. The retaining ring 322 clamps the annular protrusion 312 to the edge of the connector 321. The retaining force of the retaining ring 322 achieves a reliable connection between the suction cup 31 and the connector 321, thereby making the suction cup 31 and the base 11 tightly connected.

[0034] The preferred suction cup 31 has a lifting rod 33 at the top center. Both the connecting seat 321 and the base 11 have through holes corresponding to the lifting rod 33. The lifting rod 33 passes through the through hole and is connected to a lifting member 34. The design of the lifting rod 33 allows it to move up and down a certain distance within the through hole. The lifting member 34 can be a handle, knob, pull rod, or other form that facilitates the operation of the lifting rod 33. When a vacuum suction function is required, the lifting member 34 is operated to press down the lifting rod 33. As the lifting rod 33 descends, the space at the top of the suction cup 31 increases, and the internal air is expelled, thereby achieving the vacuum suction function. The through hole serves as a limit and support for the lifting rod 33, preventing it from shifting during up and down movement and ensuring the smooth operation of the entire vacuum suction process.

[0035] Preferably, the pressure handle 21 is provided with an anti-slip sleeve 211, the surface of which is provided with anti-slip texture. The anti-slip sleeve 211 increases the roughness of the contact between the pressure handle 21 and the hand, thereby increasing the coefficient of friction. When the hand holds the pressure handle 21 and applies pressure, the coefficient of friction increases under the condition that the normal pressure remains unchanged, which increases the friction between the hand and the anti-slip sleeve, effectively preventing the hand from sliding on the pressure handle 21. The anti-slip texture changes the contact area from the limited point-to-surface contact when it is relatively smooth to a wider multi-point, multi-faceted contact. When the hand applies force, these points and facets can better disperse the pressure, increase the stability of the contact, further hinder the occurrence of sliding, and realize a more precise pressurization operation of the pressure module.

[0036] Preferably, the pressure cylinder 22 is fixedly mounted on the support frame 12 via the mounting base 221. A shock-absorbing pad 222 is provided between the mounting base 221 and the support frame 12. The shock-absorbing pad 222 is made of an elastic material, such as rubber, silicone, or polyurethane. When the pressure cylinder 22 is working, it will generate vibrations, which will be transmitted to the support frame 12 through the mounting base 221. The shock-absorbing pad 222 can absorb and dissipate these vibration energy by utilizing its own elastic deformation, converting the mechanical energy of the vibration into other forms of energy such as heat energy inside the shock-absorbing pad material. This reduces the transmission of vibration, makes the installation of the pressure cylinder 22 more stable, reduces equipment displacement and shaking caused by vibration, thereby improving the stability and reliability of the entire pressure calibration device during operation and ensuring the accuracy of the pressure calibration results.

[0037] A quick-connector 271 is preferably provided at the pressure output interface 27. The quick-connector 271 typically uses mechanical structures, such as ferrules, snaps, threads, or spring locks, to enable quick connection and disconnection of the pressure output interface 27 with the pressure module under test and the pressure standard, respectively. This saves installation and disassembly time and can significantly improve work efficiency in scenarios where frequent changes of connection equipment or pressure testing are required. The quick-connector 271 generally contains sealing elements such as sealing rings. When the connector is tightly connected to the interface, the sealing ring deforms under pressure, filling the gap at the connection point and preventing fluid leakage, thereby ensuring the stability and sealing of the pressure output.

[0038] The preferred fine-tuning component 26 includes a fine-tuning knob 261 and a fine-tuning screw 262. The fine-tuning screw 262 is connected to the output end of the pressure regulating valve 25, and the fine-tuning knob 261 is fixedly connected to the fine-tuning screw 262. When the fine-tuning knob 261 is rotated, according to the principle of screw transmission, the rotational motion is converted into the linear motion of the fine-tuning screw 262. The linear motion can finely adjust the pressure output by the pressure regulating valve 25, thereby achieving precise control of the output pressure of the pressure calibration device, meeting various calibration tasks with high pressure accuracy requirements, and ensuring the accuracy and reliability of the pressure calibration results.

[0039] Preferably, to protect the support from damage caused by collisions, compression, and vibration during storage and transportation, a storage box 4 is provided. The storage box 4 is filled with buffer blocks, and the buffer blocks have grooves corresponding to the support body 1, the pressure mechanism 2, and the suction cup assembly 3. The design of the storage box 4 and the buffer blocks provides dedicated storage locations for each component, facilitating the storage and organization of the calibration support. The buffer blocks are made of elastic and cushioning materials, such as foam plastic and sponge. When the support is placed in the storage box 4, the buffer blocks can elastically deform under external impact or vibration, absorbing and dispersing the impact force, thereby reducing the impact on the internal components and providing protection. The grooves match the shape and size of each component of the support, accurately positioning each component within the storage box 4, preventing them from shaking during storage and transportation, further enhancing the protective effect.

[0040] This utility model discloses a portable calibration bracket for a pressure module. During operation, the bracket body 1 is first placed on a flat surface, with the suction cup assembly 3 in contact with the surface. The lifting member 34 is operated to press down the lifting rod 33, causing air to escape from the suction cups 31, which then firmly adhere to the operating surface. The combined action of multiple suction cups 31 enhances the stability of the bracket. A quick connector 271 is used to connect the pressure output interface 27 to the corresponding interfaces of the pressure module to be calibrated and the pressure standard. As needed, the output pressure or vacuum is selected via the switch 24. The pressure handle 21 is held, utilizing its anti-slip sleeve 211 and anti-slip texture to stably operate the handle. The lever structure drives the piston in the pressure cylinder 22 to reciprocate, initially pressurizing the system. The pressure standard display is observed; when the pressure approaches the target value, a fine-tuning adjustment is performed. Knob 261, through fine-tuning screw 262, finely adjusts the pressure output of pressure regulator 25 to achieve a precise calibration value; after the pressure stabilizes at the set value, perform various calibrations on the pressure module, record relevant data and calibration results, and check whether the performance of the pressure module meets the requirements; after calibration, release the pressure first through switch 24, allowing the system pressure to gradually decrease to zero; use quick connector 271 to separate pressure output interface 27 from the pressure module and pressure standard to be calibrated; operate lifting component 34 to pull up lifting rod 33, release the vacuum adsorption state of suction cup 31, and remove the calibration bracket from the operating plane; wipe the bracket body 1, pressurizing mechanism 2, suction cup assembly 3, and other components clean, place them according to the groove position on the buffer block in storage box 4, close storage box 4, and store properly.

[0041] The portable calibration bracket for pressure modules of this utility model can be installed, connected or set in a common mechanical manner, and can be implemented as long as it can achieve its beneficial effect.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A portable calibration bracket for a pressure module, characterized in that, include: The main body of the bracket (1) includes a base (11) and a support frame (12), wherein the support frame (12) is fixedly installed on the base (11); The pressurizing mechanism (2) includes a pressurizing handle (21), a pressurizing cylinder (22), a piston, a switching switch (24), a pressure regulating valve (25), a fine-tuning component (26), and a pressure output interface (27). The pressurizing handle (21) is connected to the piston inside the pressurizing cylinder (22) through a lever structure. The switching switch (24) is located at the output end of the pressurizing cylinder (22). The pressure regulating valve (25) is connected to the output end of the switching switch (24). The fine-tuning component (26) is located at the output end of the pressure regulating valve (25). The pressure output interface (27) is connected to the fine-tuning component (26). The suction cup assembly (3) includes at least two suction cups (31), each of which is movably connected to the base (11) via a connector (32).

2. The portable calibration bracket for the pressure module as described in claim 1, characterized in that, The suction cup (31) is a vacuum suction cup, and the surface of the suction cup (31) is provided with an anti-slip rubber layer (311).

3. The portable calibration bracket for the pressure module as described in claim 1, characterized in that, The connector (32) includes a connector (321) and a retaining ring (322). The connector (321) is fixedly installed on the bottom of the base (11). The top edge of the suction cup (31) is provided with an annular protrusion (312). The retaining ring (322) fixes the protrusion (312) to the edge of the connector (321).

4. The portable calibration bracket for the pressure module as described in claim 3, characterized in that, The suction cup (31) has a lifting rod (33) at the top center. The connecting seat (321) and the base (11) are both provided with through holes corresponding to the lifting rod (33). The lifting rod (33) passes through the through hole and is connected to a lifting member (34).

5. The portable calibration bracket for the pressure module as described in claim 1, characterized in that, The pressure handle (21) is provided with an anti-slip sleeve (211), and the surface of the anti-slip sleeve (211) is provided with anti-slip texture.

6. The portable calibration bracket for the pressure module as described in claim 1, characterized in that, The pressurizing cylinder (22) is fixedly mounted on the support frame (12) by a mounting base (221), and a shock-absorbing pad (222) is provided between the mounting base (221) and the support frame (12).

7. The portable calibration bracket for the pressure module as described in claim 1, characterized in that, A quick connector (271) is provided at the pressure output interface (27).

8. The portable calibration bracket for the pressure module as described in claim 1, characterized in that, The fine-tuning component (26) includes a fine-tuning knob (261) and a fine-tuning screw (262). The fine-tuning screw (262) is connected to the output end of the pressure regulating valve (25), and the fine-tuning knob (261) is fixedly connected to the fine-tuning screw (262).

9. The portable calibration bracket for the pressure module as described in claim 1, characterized in that, It also includes a storage box (4), which is filled with a buffer block. The buffer block has grooves that correspond to the bracket body (1), the pressurizing mechanism (2) and the suction cup assembly (3).

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