Pressure gauge connection airtightness detection device

Abstract

The utility model discloses a pressure gauge connection airtightness detection device which comprises an airtightness detection box, a clamping mechanism and a feeding mechanism, wherein the clamping mechanism and the feeding mechanism are arranged on the airtightness detection box. An air tightness detection pool is arranged at the bottom of the air tightness detection box, and the clamping mechanism controls the pressure gauge to be detected to be immersed into the air tightness detection pool; the clamping mechanism comprises a pressure gauge clamp used for clamping a pressure gauge to be detected, a ball screw used for controlling the pressure gauge clamp to ascend and descend, and a motor. The feeding mechanism comprises a feeding turning plate used for feeding a pressure gauge clamp, a turning plate rotating shaft used for controlling the feeding turning plate to turn over, a meshing gear and a lifting rack plate. According to the device, the feeding function of the to-be-detected pressure gauge can be achieved through the feeding turning plate, meanwhile, the to-be-detected pressure gauge can be clamped and taken through the clamping mechanism, the feeding turning plate can be driven to automatically rotate and retract in the discharging process when the height of the pressure gauge clamp is decreased, and feeding and discharging operation of the pressure gauge is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauge detection, in particular to a pressure gauge connection air tightness detection device. Background Art

[0002] A pressure gauge is an instrument that uses elastic elements as sensitive elements to measure and indicate pressures higher than the ambient pressure. It is widely used in almost all industrial processes and scientific research fields. The higher the measurement accuracy of the pressure gauge, the higher the air tightness requirements. Therefore, before the pressure gauge is put into use, it is necessary to perform an air tightness test to ensure that it can be put into use. The commonly used pressure gauge air tightness test devices have complex structures and high costs, while some existing pressure gauge air tightness test devices with simple structures and easy use still have some problems during use.

[0003] For example, a Chinese patent with publication number CN219104282U discloses a high-sensitivity pressure gauge connection air tightness detection device, which is convenient for fixing pressure gauges of different diameters by providing a fixing mechanism, and can adjust the distance between the two clamp diameters according to the diameter of the pressure gauge, which is easy to operate and improves the practicality of the detection device; this type of pressure gauge needs to be manually placed in the cavity of the clamp before testing, and then clamped by the clamp, which not only has the risk of the pressure gauge falling, but also easily pinches the operator's fingers, and needs to be improved. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, in order to solve the above technical problems, the utility model provides the following technical solutions: a pressure gauge connection airtightness detection device, comprising an airtightness detection box and a clamping mechanism and a feeding mechanism arranged on the airtightness detection box;

[0006] An airtight detection pool is arranged at the bottom of the airtight detection box, and a clamping mechanism and a feeding mechanism are arranged above the airtight detection pool. The clamping mechanism controls the pressure gauge to be tested to be immersed in the airtight detection pool;

[0007] The clamping mechanism includes a pressure gauge fixture for clamping the pressure gauge to be tested, a ball screw and a motor for controlling the lifting of the pressure gauge fixture, the top of the pressure gauge fixture is fixedly connected with a lifting seat, the lifting seat is mechanically connected to the ball screw, and the end of the ball screw is connected to the motor;

[0008] The feeding mechanism includes a feeding flap for feeding the pressure gauge fixture and a flap shaft, meshing gears, and a lifting rack plate for controlling the flipping of the feeding flap. The pressure gauge to be clamped by the pressure gauge fixture for detection is arranged on the feeding flap, and the feeding flap is arranged on one side of the pressure gauge fixture. The end of the feeding flap away from the pressure gauge fixture is fixedly connected to the flap shaft, a group of meshing gears is connected to the end of the flap shaft, and a group of meshing gears is also installed on the ball screw. The upper and lower groups of meshing gears are both meshingly connected to the lifting rack plate.

[0009] As a preferred solution of the pressure gauge connected to the air tightness detection device of the utility model, the clamping mechanism also includes a transmission slider and a transmission connecting rod, a group of transmission connecting rods are movably connected to each of the two sides of the top of the pressure gauge clamp, and a group of transmission sliders are movably connected to each of the tops of the two groups of transmission connecting rods, and thread structures with opposite thread rotation directions are arranged on both sides of the ball screw, and the two groups of transmission sliders are respectively mechanically connected to the ball screw.

[0010] As a preferred solution of the pressure gauge connected air tightness detection device described in the utility model, wherein: the pressure gauge clamp includes clamping jaws, clamping jaw connecting rods, clamping gears and a motor, the clamping jaws are provided with two groups, the two groups of clamping jaws are relatively arranged on both sides of the pressure gauge to be detected, the top ends of the two groups of clamping jaws are movably connected with a group of clamping jaw connecting rods, the top ends of the two groups of clamping jaws are respectively connected with a group of clamping gears, the two groups of clamping gears are meshed with each other for transmission connection, and the clamping gears are mechanically connected to the transmission end of the motor.

[0011] As a preferred solution of the pressure gauge connected to the air tightness detection device of the utility model, the pressure gauge fixture also includes a driving gear, the motor is connected to the driving gear, and the driving gear is meshed and transmission-connected with one set of clamping gears.

[0012] As a preferred solution of the pressure gauge connection air tightness detection device of the utility model, wherein: the clamping jaws are provided with a clamping groove used in conjunction with the pressure gauge to be detected, and a protective gasket is arranged in the clamping groove.

[0013] As a preferred solution of the pressure gauge connected to the air tightness detection device of the utility model, a pressure gauge holder is arranged at the front end of the loading flap, and a pressure gauge slot is provided on the pressure gauge holder for the pressure gauge to be tested to be embedded, and a pressure gauge clamp clamps the pressure gauge to be tested from both sides of the pressure gauge slot.

[0014] Beneficial effects of the utility model:

[0015] The utility model proposes a pressure gauge connection air tightness detection device, which can realize the loading function of the pressure gauge to be detected through the loading flap, and at the same time, can also clamp and take the pressure gauge to be detected through the clamping mechanism, and can drive the loading flap to automatically rotate and retract during the process of lowering the height of the pressure gauge clamp for unloading, so as to facilitate the loading and unloading operations of the pressure gauge, and has strong practicality and flexibility, and is safer than the direct manual loading operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the airtightness detection box of the utility model.

[0019] Figure 3 It is a schematic diagram of the connection structure between the clamping mechanism and the feeding mechanism of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the clamping mechanism and the feeding mechanism of the utility model when they are in working state.

[0021] Figure 5 It is a schematic diagram of the specific structure of the pressure gauge clamp of the utility model.

[0022] In the figure: 100, airtightness test box; 101, airtightness test pool;

[0023] 200, clamping mechanism; 201, pressure gauge fixture; 2011, clamping jaws; 2012, clamping jaw connecting rod; 2013, clamping gear; 2014, motor; 2015, driving gear; 2016, protective gasket; 202, ball screw; 203, lifting seat; 204, motor; 205, transmission slider; 206, transmission connecting rod;

[0024] 300, feeding mechanism; 301, feeding flap; 3011, pressure gauge holder; 3012, pressure gauge slot; 302, flap shaft; 303, meshing gear; 304, lifting rack plate. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Reference Figures 1 to 5 , which is an embodiment of the utility model, provides a pressure gauge connection air tightness detection device, including an air tightness detection box 100 and a clamping mechanism 200 and a feeding mechanism 300 arranged on the air tightness detection box 100;

[0030] An airtight testing pool 101 is arranged at the bottom of the airtight testing box 100, and the clamping mechanism 200 and the feeding mechanism 300 are arranged above the airtight testing pool 101. The clamping mechanism 200 controls the pressure gauge to be tested to be immersed in the airtight testing pool 101;

[0031] The clamping mechanism 200 includes a pressure gauge clamp 201 for clamping the pressure gauge to be tested and a ball screw 202 and a motor 204 for controlling the lifting and lowering of the pressure gauge clamp 201. The pressure gauge clamp 201 includes a clamping jaw 2011, a clamping jaw connecting rod 2012, a clamping gear 2013 and a motor 2014. The clamping jaw 2011 is provided with two groups, and the two groups of clamping jaws 2011 are relatively arranged on both sides of the pressure gauge to be tested. The top ends of the two groups of clamping jaws 2011 are movably connected with a group of clamping jaw connecting rods 2012, and the top ends of the two groups of clamping jaws 2012 are respectively connected with a group of clamping gears 2013. The two groups of clamping gears 2013 are meshed and transmission-connected with each other, and the clamping gears 2013 are mechanically transmission-connected with the transmission end of the motor 2014; the pressure gauge clamp 201 also includes a driving gear 2015, and the motor 2014 is connected with the driving gear The driving gear 2015 is connected with one of the groups of clamping gears 2013 in meshing transmission connection; the clamping jaws 2011 are provided with a clamping groove for use with the pressure gauge to be tested, and a protective gasket 2016 is arranged in the clamping groove; the clamping mechanism 200 also includes a transmission slider 205 and a transmission connecting rod 206, and a group of transmission connecting rods 206 are movably connected to each other on both sides of the top of the pressure gauge fixture 201, and a group of transmission sliders 205 are movably connected to each other on the top of the two groups of transmission connecting rods 206, and a thread structure with opposite thread rotation directions is arranged on both sides of the ball screw 202, and the two groups of transmission sliders 205 are respectively mechanically connected to the ball screw 202; the top of the pressure gauge fixture 201 is fixedly connected with a lifting seat 203, and the lifting seat 203 is mechanically connected to the ball screw 202, and the end of the ball screw 202 is connected to the motor 204;

[0032] The feeding mechanism 300 includes a feeding flap 301 for feeding the pressure gauge fixture 201, a flap shaft 302, a meshing gear 303, and a lifting rack plate 304 for controlling the flipping of the feeding flap 301. The pressure gauge to be clamped and tested by the pressure gauge fixture 201 is arranged on the feeding flap 301. The feeding flap 301 is arranged on one side of the pressure gauge fixture 201. The end of the feeding flap 301 away from the pressure gauge fixture 201 is fixedly connected to the flap shaft 302. A group of meshing gears 303 are connected to the end of the plate shaft 302, and a group of meshing gears 303 are also installed on the ball screw 202. The upper and lower groups of meshing gears 303 are both meshingly connected with the lifting rack plate 304; a pressure gauge holder 3011 is arranged at the front end of the loading flap 301, and a pressure gauge slot 3012 is provided on the pressure gauge holder 3011 for the pressure gauge to be tested to be embedded, and the pressure gauge clamp 201 clamps the pressure gauge to be tested from both sides of the pressure gauge slot 3012.

[0033] In this embodiment: when in use, first place the pressure gauge to be tested in the pressure gauge slot 3012 on the loading flap 301, so that the pressure gauge holder 3011 clamps the two sides of the pressure gauge to be tested, and then start the motor 2014, so that the motor 2014 drives the driving gear 2015 to rotate, and the driving gear 2015 drives the two sets of clamping gears 2013 to rotate relative to each other, and then drives the two sets of clamping claws 2011 movably connected thereto to approach each other through the transmission connecting rod 206, thereby clamping the two sides of the pressure gauge to be tested.

[0034] Next, start the motor 204 so that the motor 204 drives the ball screw 202 to rotate, and the ball screw 202 drives the two sets of transmission sliders 205 to approach each other, thereby gradually reducing the angle between the two sets of transmission connecting rods 206, and gradually moving the lifting seat 203 downward until the pressure gauge to be tested is immersed in the liquid in the airtight detection tank 101.

[0035] At the same time, the ball screw 202 drives one set of meshing gears 303 to rotate, and through the cooperation between the meshing gears 303 and the lifting rack plate 304, drives the other set of meshing springs 303 to rotate, and then drives the flip shaft 302 to rotate, and drives the loading flap 301 to rotate to a suitable angle through the flip shaft 302, so that the pressure gauge to be tested moves down smoothly.

[0036] The air tightness of the pressure gauge to be tested is determined by observing whether bubbles appear in the pressure gauge to be tested.

[0037] After the test is completed, the motor 204 is controlled to rotate in the reverse direction so that the pressure gauge to be tested moves up and out of the airtight test pool 101. At the same time, the loading flap 301 is reset to a horizontal state. The motor 2014 is controlled to rotate in the reverse direction to release the pressure gauge to be tested and take it out.

[0038] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pressure gauge connection air tightness detection device, characterized in that: It comprises an airtightness detection box (100), and a clamping mechanism (200) and a feeding mechanism (300) arranged on the airtightness detection box (100); An airtightness detection pool (101) is arranged at the bottom of the airtightness detection box (100), and the clamping mechanism (200) and the feeding mechanism (300) are both arranged above the airtightness detection pool (101), and the clamping mechanism (200) controls the pressure gauge to be tested to be immersed in the airtightness detection pool (101); The clamping mechanism (200) comprises a pressure gauge clamp (201) for clamping the pressure gauge to be tested, and a ball screw (202) and a motor (204) for controlling the lifting and lowering of the pressure gauge clamp (201); a lifting seat (203) is fixedly connected to the top of the pressure gauge clamp (201); the lifting seat (203) is mechanically connected to the ball screw (202); and an end of the ball screw (202) is connected to the motor (204); The feeding mechanism (300) comprises a feeding flap (301) for feeding the pressure gauge fixture (201), a flap rotating shaft (302) for controlling the flipping of the feeding flap (301), a meshing gear (303), and a lifting rack plate (304). The pressure gauge to be clamped and tested by the pressure gauge fixture (201) is arranged on the feeding flap (301). The feeding flap (301) is arranged on one side of the pressure gauge fixture (201). One end of the feeding flap (301) away from the pressure gauge fixture (201) is fixedly connected to the flap rotating shaft (302). A group of meshing gears (303) are connected to the end of the flap rotating shaft (302). A group of meshing gears (303) are also installed on the ball screw (202). The upper and lower groups of meshing gears (303) are both meshingly connected to the lifting rack plate (304).

2. The pressure gauge connection air tightness detection device according to claim 1, characterized in that: The clamping mechanism (200) further comprises a transmission slider (205) and a transmission connecting rod (206); a group of transmission connecting rods (206) are movably connected to each other at both sides of the top of the pressure gauge clamp (201); a group of transmission sliders (205) are movably connected to each other at the top of the two groups of transmission connecting rods (206); thread structures with opposite thread rotation directions are arranged on both sides of the ball screw (202); and the two groups of transmission sliders (205) are respectively mechanically connected to the ball screw (202).

3. The pressure gauge connection air tightness detection device according to claim 1, characterized in that: The pressure gauge clamp (201) comprises a clamping jaw (2011), a clamping jaw connecting rod (2012), a clamping gear (2013) and a motor (2014); the clamping jaw (2011) is provided with two groups, the two groups of clamping jaws (2011) are arranged relatively on both sides of the pressure gauge to be tested, the top ends of the two groups of clamping jaws (2011) are movably connected to a group of clamping jaw connecting rods (212), the top ends of the two groups of clamping jaws connecting rods (2012) are respectively connected to a group of clamping gears (2013), the two groups of clamping gears (2013) are meshed and transmission-connected with each other, and the clamping gears (2013) are mechanically transmission-connected with the transmission end of the motor (2014).

4. The pressure gauge connection air tightness detection device according to claim 3, characterized in that: The pressure gauge fixture (201) further comprises a driving gear (2015), the motor (2014) is connected to the driving gear (2015), and the driving gear (2015) is meshingly connected to one set of the clamping gears (2013).

5. The pressure gauge connection air tightness detection device according to claim 3, characterized in that: The clamping jaws (2011) are provided with a clamping groove for use with a pressure gauge to be tested, and a protective gasket (2016) is arranged in the clamping groove.

6. The pressure gauge connection air tightness detection device according to claim 1, characterized in that: A pressure gauge holder (3011) is arranged at the front end of the loading flap (301), and a pressure gauge slot (3012) is provided on the pressure gauge holder (3011) for inserting the pressure gauge to be tested, and the pressure gauge clamp (201) clamps the pressure gauge to be tested from both sides of the pressure gauge slot (3012).

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