CN218066856U - Adjustable double-pipe pressure instrument connecting device and instrument calibration equipment - Google Patents

Abstract

The utility model provides a double-barrelled pressure instrument connecting device and instrument check-up equipment with adjustable, including fixed subassembly, still including being located fixed subassembly both sides, and respectively rather than the first removal joint Assembly and the second removal joint Assembly who connects, first removal joint Assembly includes first portion of gripping, and the second removes joint Assembly and includes the second portion of gripping, grips portion and second through first portion of gripping and can order about first removal joint Assembly and second removal joint Assembly respectively and remove between the position that is close to fixed subassembly and keeps away from fixed subassembly. The utility model discloses an add first portion of gripping and second portion of gripping after on first movable joint subassembly and second movable joint, be convenient for carry out the push-and-pull removal to first movable joint subassembly and second movable joint to remove first movable joint subassembly and second movable joint to the assigned position.

Description

Adjustable double-pipe pressure instrument connecting device and instrument calibration equipment

Technical Field

The utility model relates to an instrument connecting device, especially a double-barrelled pressure instrument connecting device and instrument check-up equipment with adjustable.

Background

At present, the pressure meter used on the railway locomotive is generally a double-pipe pressure meter, the pressure meter is provided with two interfaces and a dial, and two pointers are arranged in the dial and can simultaneously indicate the pressure of gas accessed by the two interfaces. In the process of calibrating the double-tube pressure instrument, the double-tube pressure instrument is required to be in gas circuit connection with an external gas source through the instrument connecting part, the external gas source provides gas with certain pressure to the double-tube pressure instrument through the instrument connecting part, and the indicating values of two pointers on the double-tube pressure instrument are read to calibrate the double-tube pressure instrument. Because the double-pipe pressure instrument has various specifications and the distances between the two interfaces are different, the interface component in the instrument connecting device is required to be moved, so that the double-pipe pressure instrument is configured with the double-pipe pressure instruments of different specifications.

However, in the conventional meter connecting device, since the grip is not additionally provided on the outer wall surface of the meter connecting device, it is inconvenient to move the mouthpiece assembly to a designated position, which causes inconvenience in the pneumatic connection between the meter connecting device and the dual tube pressure meter.

Disclosure of Invention

To the weak point that exists in the above-mentioned problem, the utility model provides a double-barrelled pressure instrument connecting device and instrument check-up equipment with adjustable be convenient for carry out the push-and-pull removal to first removal joint Assembly and second removal joint Assembly.

In order to realize the above-mentioned purpose, the utility model provides a double-barrelled pressure instrument connecting device with adjustable, including fixed subassembly 1, still including being located fixed subassembly 1 both sides, and the first removal joint Assembly 3 and the second removal joint Assembly 5 rather than being connected respectively, first removal joint Assembly 3 includes the first portion of gripping, and second removal joint Assembly 5 includes the second portion of gripping, can order about first removal joint Assembly 3 and second removal joint Assembly 5 through first portion of gripping and second portion of gripping respectively and remove between the position of being close to fixed subassembly 1 and keeping away from fixed subassembly 1.

Preferably, the first moving joint component 3 and the second moving joint component 5 are respectively located at the left side and the right side of the fixed component 1, and the first moving joint component 3 and the second moving joint component 5 can be respectively driven to move in the horizontal direction between a position close to the fixed component 1 and a position far away from the fixed component 1 by the first holding portion and the second holding portion.

Preferably, an intermediate cavity 10 is provided in the fixed component 1, a first cavity 301 is provided in the first movable joint component 3, a second cavity 501 is provided in the second movable joint component 5, and both the first cavity 301 and the second cavity 501 are communicated with the intermediate cavity 10.

Preferably, the fixing assembly 1 includes a fixing seat 15, a first guide tube 11, a second guide tube 12, a first cross bar 13 and a second cross bar 14, the first guide tube 11 and the first cross bar 13 are disposed on one side of the fixing seat 15, and the second guide tube 12 and the second cross bar 14 are disposed on the other side of the fixing seat 15;

the first guide tube 11 is internally provided with a first guide gas pipeline 110, the second guide tube 12 is internally provided with a second guide gas pipeline 120, the first cavity 301 is located inside the fixed seat 15, and both the first guide gas pipeline 110 and the second guide gas pipeline 120 are communicated with the first cavity 301.

Preferably, the end of the first guide tube 11 and the end of the first cross bar 13 are respectively disposed in the first groove and the second groove on one side of the fixing seat 15, and the end of the second guide tube 12 and the end of the second cross bar 14 are disposed in the third groove and the fourth groove on the other side of the fixing seat 15.

Preferably, the first cross bar 13 comprises a cross bar portion a131 and a cross bar portion b132, the end of the cross bar portion b132 is placed in the second groove, the diameter of the cross bar portion a131 is greater than that of the cross bar portion b132, and a step portion a is formed at the connection position of the cross bar portion a131 and the cross bar portion b 132;

the second rail 14 includes a rail portion c141 and a rail portion d142, the end of the rail portion d142 is disposed in the fourth groove, the diameter of the rail portion c141 is greater than that of the rail portion d142, and a step portion b is formed at the connection position of the rail portion c141 and the rail portion d 142.

Preferably, one end of the fixing seat 15 further includes a threaded hole communicated with the central cavity 10, and a part of the connector 2 is disposed in the threaded hole.

Preferably, the first movable joint assembly 3 comprises a first sliding block 30, a first stop valve 31 and a first meter connector 4, wherein the first sliding block 30 is located on one side of the fixed seat 15 and is movably connected with the fixed seat 15;

the end of the first cut-off valve 31 is disposed inside the first slider 30 for controlling the open/close state of the first cavity 301;

the end of the first meter connector 4 is disposed inside the first slider 30, and the inside thereof is in pipe communication with the first cavity 301.

Preferably, the first cavity 301 includes a first cavity a3010, a first cavity b3011 and a first cavity c3012, the first cavity a3010 is in pipeline communication with the first cavity b3011, the first stop valve 31 controls the open/close state of the first cavity b3011 and the first cavity c3012, and the inside of the first instrument connector 4 is in pipeline communication with the first cavity c 3012;

the first cavity a3010 is sleeved outside the first conduit 11, and the interior of the first cavity a communicates with the first conduit 110.

Preferably, the first slider 30 further includes a through hole portion a32, which is sleeved on the outer side of the first cross bar 13.

Preferably, the through hole portion a32 comprises a through hole a320 and a through hole b321 which are communicated with each other, the aperture of the through hole a320 is larger than that of the through hole b321, and a step portion c is formed at the connection position of the through hole a320 and the through hole b 321;

when the step portion a comes into contact with the step portion c, a moving position of the first rail 13 in the through hole portion a32 is defined.

Preferably, the second movable joint assembly 5 comprises a second sliding block 50, a second stop valve 51 and a second meter joint 6, and the second sliding block 50 is located on one side of the fixed seat 15 and movably connected with the fixed seat 15;

the end of the second cut-off valve 51 is arranged inside the second slider 50, and is used for controlling the open-close state of the second cavity 501;

the end of the second meter connector 6 is arranged inside the second sliding block 50, and the inside of the second meter connector is in pipeline communication with the second cavity 501.

Preferably, the second cavity 501 comprises a second cavity a5010, a second cavity b5011 and a second cavity c5012, the second cavity a5010 and the second cavity b5011 are in pipeline communication, the second stop valve 51 controls the opening and closing states of the second cavity b5011 and the second cavity c5012, and the inside of the second meter connector 6 is in pipeline communication with the second cavity c 5012;

the second cavity a5010 is sleeved on the outer side of the second guide tube 12, and the inside of the second cavity a is communicated with the second guide tube 120.

Preferably, the second slider 50 further includes a through hole portion b52, which is sleeved on the outer side of the second cross bar 14.

Preferably, the through hole part b52 comprises a through hole c520 and a through hole d521 which are communicated with each other, the aperture of the through hole c520 is larger than that of the through hole d521, and a step part d is formed at the joint of the through hole c520 and the through hole d 521;

when the step b comes into contact with the step d, the moving position of the second rail 14 in the through hole b52 is defined.

The utility model also provides an instrument calibration equipment, including the aforesaid arbitrary double-barrelled pressure instrument connecting device with adjustable.

Compared with the prior art, the utility model has one of following advantage:

the first movable joint component and the second movable joint component can move left and right relative to the fixed seat along the horizontal direction, so that the distance between the first movable joint component and the second movable joint component is adjusted to adapt to double-pipe pressure instruments with different distances between the two joints;

the first movable joint component and the second movable joint component have the same structure and the same weight and are correspondingly positioned on the left side and the right side of the fixed seat, so that the adjustable double-pipe pressure instrument connecting device can keep a balanced state;

the first hand wheel and the second hand wheel are additionally arranged on the outer sides of the first sliding block and the second sliding block, so that the first moving joint component and the second moving joint can be conveniently pushed and pulled through the first hand wheel and the second hand wheel, and the first moving joint component and the second moving joint can be moved to the designated positions;

through setting up first stop valve and second stop valve respectively on first slider and second slider, consequently, can alleviate the weight that first instrument connects and the second instrument connects, avoid taking place the fracture between instrument connects and the slider to still be convenient for control the open and close state of first cavity and second cavity.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is a cross-sectional view of FIG. 1;

FIG. 5 is a block diagram of the first movable joint assembly after movement;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is a block diagram of the second moving joint assembly after movement;

FIG. 9 is a cross-sectional view of FIG. 7;

FIG. 10 is an enlarged view of portion B of FIG. 9;

FIG. 11 is a schematic view of the first movable joint assembly and the second movable joint assembly after movement;

fig. 12 is a cross-sectional view of fig. 11.

The main reference numbers are as follows:

1-a stationary component; 10-a middle cavity; 11-a first conduit; 110 — a first air conduction line; 12-a second conduit; 120-a second air conduction line; 13-a first cross bar; 131-crossbar portion a; 132-crossbar portion b; 14-a second cross bar; 15-a fixed seat;

2-a connector;

3-a first moving joint assembly; 30-a first slider; 301-a first cavity; 3010-first cavity a; 3011-a first cavity b; 3012-first cavity c; 31-a first stop valve; 310-a first valve body; 311-a first valve needle; 312-a first handwheel; 32-via portion a; 320-via a; 321-a through hole b;

4-a first meter connector; 40-quick-connect nut a; 41-quick-connect rod a;

5-a second moving joint assembly; 50-a second slide; 501-a second cavity; 5010-second lumen a; 5011-second cavity b; 5012-second cavity c; 51-a second stop valve; 510-a second valve body; 511-a second valve needle; 512-a second hand wheel; 52-through hole section b; 520-through hole c; 521-through hole d;

6-a second meter connector; 60-quick-connect nut c; 61-quick-connect rod b

Detailed Description

As shown in fig. 1 to 12, the utility model provides an adjustable double-barrelled pressure instrument connecting device, including being equipped with the fixed subassembly 1 of middle cavity 10 in, be equipped with the first movable joint subassembly 3 of first cavity 301 in, be equipped with the second movable joint subassembly 5 of second cavity 501 in and with the connector 2 of fixed subassembly 1 pipeline intercommunication. Wherein, the first movable joint component 3 and the second movable joint component 5 are movably connected with the fixed component 1, and make the first cavity 301 and the second cavity 501 communicated with the middle cavity 10.

The first moving joint component 3 and the second moving joint component 5 are positioned at the left side and the right side of the fixed component 1 correspondingly, and at least one of the first moving joint component 3 and the second moving joint component 5 can move horizontally relative to the fixed component 1.

The fixing assembly 1 includes a fixing base 15, a first guide tube 11, a second guide tube 12, a first cross bar 13 and a second cross bar 14. The end of the first guide tube 11 and the end of the first cross bar 13 are respectively disposed in a first groove (not shown) and a second groove (not shown) on one side of the fixing base 15, and the end of the second guide tube 12 and the end of the second cross bar 14 are disposed in a third groove (not shown) and a fourth groove (not shown) on the other side of the fixing base 15.

The first guide tube 11 and the first cross bar 13 are arranged up and down, and are disposed in a first groove (not shown) and a second groove (not shown) on one side of the fixing base 15. The second guide tube 12 and the second cross bar 14 are arranged up and down, and are disposed in a third groove (not shown) and a fourth groove (not shown) on the other side of the fixing base 15.

The first guide pipe 11 is internally provided with a first guide pipeline 110, the second guide pipe 12 is internally provided with a second guide pipeline 120, the first cavity 301 is located inside the fixed seat 15, and the first guide pipeline 110 and the second guide pipeline 120 are both communicated with the first cavity 301.

In this embodiment, the first guide tube 11 is located on the left side of the fixing base 15, the second guide tube 12 is located on the right side of the fixing base 15, and the two positions are corresponding and at the same level, and the first guide tube 110 is in pipe communication with the second guide tube 120 through a part of the first cavity 301.

In addition, sealing rings are respectively sleeved on the outer wall surfaces of the first conduit 11 and the second conduit 12.

In this embodiment, the first cross bar 13 is located on the left side of the fixing seat 15, and the second cross bar 14 is located on the right side of the fixing seat 15, which are located at the same level and correspond to each other.

The first cross bar 13 includes a cross bar portion a131 and a cross bar portion b132, the end of the cross bar portion b132 is disposed in the second groove, the diameter of the cross bar portion a131 is greater than that of the cross bar portion b132, and a step portion a is formed at the connection position of the cross bar portion a131 and the cross bar portion b 132.

The second rail 14 includes a rail portion c141 and a rail portion d142, the end of the rail portion d142 is disposed in the fourth groove, the diameter of the rail portion c141 is greater than that of the rail portion d142, and a step portion b is formed at the connection between the rail portion c141 and the rail portion d 142.

In addition, one end of the fixed seat 15 further includes a threaded hole (not shown) communicating with the central cavity 10, and a portion of the connector 2 is disposed in the threaded hole (not shown).

In this embodiment, the connector cavity is located at the bottom end of the fixing base 2, and a portion of the connector 2 is disposed in the fixing base 15 through the connector cavity, so that the interior of the connector is communicated with the first cavity 301.

In the fixed assembly 1, the first movable joint assembly 3 is disposed on the left side of the fixed seat 15 through the first conduit 11 and the first cross bar 13, and is movable from a first position close to the fixed seat 15 to a second position far from the fixed seat 15 through the first conduit 11 and the first cross bar 13.

The second movable joint component 5 is disposed at the right side of the fixed seat 15 through the second conduit 12 and the second cross bar 14, and is movable from a first position close to the fixed seat 15 to a second position far from the fixed seat 15 through the second conduit 12 and the second cross bar 14.

The first movable joint component 3 comprises a first sliding block 30, a first stop valve 31 and a first meter connector 4, wherein the first sliding block 30 is positioned at the left side of the fixed seat 15 and is movably connected with the fixed seat 15. The end of the first stop valve 31 is disposed inside the first slider 30 for controlling the open/close state of the first cavity 301, and the end of the first meter connector 4 is disposed inside the first slider 30, and the inside thereof is in pipe communication with the first cavity 301.

The first cavity 301 in the first slider 30 includes a first cavity a3010, a first cavity b3011 and a first cavity c3012, the first cavity a3010 is communicated with the first cavity b3011 through a pipeline, and the inside of the first instrument connector 4 is communicated with the first cavity c3012 through a pipeline.

In the present embodiment, the first meter connector 4 is disposed at the top end position of the first slider 30, and the first cut-off valve 31 is disposed laterally at one side of the first slider 30 with its end placed inside from the outside of the first slider 30.

The first stop valve 31 includes a first valve body 310, a first valve needle 311 and a first hand wheel 312, wherein the first hand wheel 312 is located outside the first slider 30 and away from the fixing base 15, the first valve body 310 is disposed inside the first slider 30, a portion of the first valve needle 311 is disposed inside the first valve body 310, and another portion is disposed outside the first valve body 310 and connected to the first hand wheel 312. The first hand wheel 312 is used for controlling the first valve needle 311 to move, so as to control the open and close states of the first cavity b3011 and the first cavity c 3012.

When the first hand wheel 312 controls the end of the first valve needle 311 to move toward the fixing seat 15, the space between the first cavity b3011 and the first cavity c3012 can be switched from the open state to the closed state. When the first hand wheel 312 operates the end of the first valve needle 311 to move away from the fixed seat 15, the first cavity b3011 and the first cavity c3012 can be switched from a closed state to an open state.

When the first cut-off valve 31 controls the space between the first cavity b3011 and the first cavity c3012 to be in an open state, the first cavity a3010 is sequentially communicated with the first cavity b3011, the first cavity c3012 and the interior of the first instrument connector 4. When the first stop valve 31 controls the space between the first cavity b3011 and the first cavity c3012 to be in a closed state, the first cavity a3010 cannot communicate with the inside of the first meter connector 4.

In addition, when the first guide tube 11 moves in the first cavity a3010, in order to increase the sealing effect between the first guide tube 110 in the first guide tube 11 and the first cavity a3010, a sealing ring is further sleeved on the outer wall surface of the first guide tube 11.

The first slider 30 further includes a through hole portion a32 including a through hole a320 and a through hole b321 which communicate with each other, the aperture of the through hole a320 being larger than the aperture of the through hole b321, and a step portion c being formed at a junction of the through hole a320 and the through hole b 321.

The first meter connector 4 comprises a quick-connect nut a40 and a quick-connect rod a41, and the tail end of the quick-connect rod a41 is detachably arranged in a connector accommodating cavity (not shown in the figure) at the top end of the first sliding block 30. A fluid line a is provided inside the quick connection rod a41, and communicates with the inner space a of the quick connection nut a 40.

When the first cut-off valve 31 controls the space between the first cavity b3011 and the first cavity c3012 to be in an open state, the first cavity a3010 is sequentially communicated with the first cavity b3011, the first cavity c3012 and the inner space a of the quick-connection rod a41, where the fluid pipeline a and the quick-connection nut a40 are arranged.

When the first movable joint assembly 3 needs to be assembled at the left position of the fixed seat 15, the first guide tube 11 is movably disposed in the first cavity a3010, and the first cross bar 13 is movably disposed in the through hole portion a 32.

Since the first conduit 11 is disposed inside the first cavity a3010 so that the intermediate cavity 10 is in line communication with the first cavity a3010, the pressure medium can be input into the first cavity a3010 through the intermediate cavity 10.

When the first rail 13 moves inside the through hole portion a32, the moving position of the first rail 13 in the through hole portion a32 may be defined when the step portion a comes into contact with the step portion c.

Since the first hand wheel 312 is disposed outside the first slider 30, the first hand wheel 312 forms a first grip portion. When the position of the first movable joint component 3 needs to be moved, the first hand wheel 312 is held and pulled or pushed to a position far away from or close to the fixed seat 15, so that the first movable joint component 3 can be moved to a position near the fixed seat 15 or a position far away from the fixed seat 15, and the purpose of adjusting the distance between the first movable joint component 3 and the fixed seat 15 is achieved.

The second movable joint component 5 comprises a second sliding block 50, a second stop valve 51 and a second meter connector 6, wherein the second sliding block 50 is located on the right side of the fixed seat 15 and is movably connected with the fixed seat 15. The end of the second cut-off valve 51 is disposed inside the second slider 50 for controlling the open/close state of the second cavity 501, and the end of the second meter connector 6 is disposed inside the second slider 50, and the inside thereof is in pipeline communication with the second cavity 501.

The second cavity 501 in the second slider 50 includes a second cavity a5010, a second cavity b5011 and a second cavity c5012, the second cavity a5010 and the second cavity b5011 are in pipeline communication, and the inside of the second instrument connector 6 is in pipeline communication with the second cavity c 5012.

In the present embodiment, the second meter connector 6 is disposed at the top end position of the second slider 50, and the second cut-off valve 51 is disposed laterally at one side of the second slider 50 with its end placed inside by the outside of the second slider 50.

The second stop valve 51 comprises a second valve body 510, a second valve needle 511 and a second hand wheel 512, wherein the second hand wheel 512 is located on the outer side of the second slider 50 and away from the fixing seat 15, the second valve body 510 is disposed inside the second slider 50, a part of the second valve needle 511 is disposed inside the second valve body 510, and the other part is disposed on the outer side of the second valve body 510 and connected with the second hand wheel 512. The second hand wheel 512 controls the second valve needle 511 to move, so as to control the opening and closing states of the second cavity b5011 and the second cavity c 5012.

When the second handwheel 512 operates the end of the second valve needle 511 to move towards the direction approaching the fixed seat 15, the second cavity b5011 and the second cavity c5012 can be switched from the open state to the closed state. When the second handwheel 512 operates the end of the second valve needle 511 to move away from the fixed seat 15, the second cavity b5011 and the second cavity c5012 can be switched from the closed state to the open state.

When the second cut valve 51 controls the second chamber b5011 and the second chamber c5012 to be in an open state, the second chamber a5010 sequentially communicates with the second chamber b5011, the second chamber c5012, and the inside of the second meter connector 6. When the second cut-off valve 51 controls the second chamber b5011 and the second chamber c5012 to be in a closed state, the second chamber a5010 cannot communicate with the inside of the second meter connector 6.

In addition, in order to increase the sealing effect between the second air guide line 120 in the second guide pipe 12 and the second cavity a5010 when the second guide pipe 12 moves in the second cavity a5010, a sealing ring is further fitted on the outer wall surface of the second guide pipe 12.

The second slider 50 further includes a through hole portion b52 including a through hole c520 and a through hole d521 communicating with each other, the through hole c520 has a larger diameter than the through hole d521, and a step d is formed at a junction of the through hole c520 and the through hole d 521.

The second meter connector 6 comprises a quick-connection nut b60 and a quick-connection rod b61, and the tail end of the quick-connection rod b61 is detachably arranged in a connector accommodating cavity (not shown in the figure) at the top end of the second sliding block 50. A fluid line b is provided inside the quick coupling rod b61, and communicates with the inner space b of the quick coupling nut b 60.

When the second stop valve 51 controls the opening state between the second cavity b5011 and the second cavity c5012, the second cavity a5010 is communicated with the second cavity b5011, the second cavity c5012, and the inner space b of the quick-connection rod b61, in which the fluid pipeline b and the quick-connection nut b60 are arranged.

When it is desired to mount the second movable joint assembly 5 at the right position of the fixed seat 15, the second guide tube 12 is movably disposed in the second cavity a5010, and the second crossbar 14 is movably disposed in the through hole portion b 52.

Since the second guide tube 12 is disposed inside the second cavity a5010 such that the intermediate cavity 10 is in line communication with the second cavity a5010, the pressure medium may be introduced into the second cavity a5010 through the intermediate cavity 10. If the second cavity b5011 and the second cavity c5012 are opened, the pressure medium can be fed into the second instrument connector 6 through the second cavity b5011 and the second cavity c5012 in sequence.

When the step b is in contact with the step d while the second rail 14 moves inside the through hole b52, a moving position of the second rail 14 in the through hole b52 may be defined.

Since the second hand wheel 512 is disposed outside the second slider 50, the second hand wheel 512 forms a second holding portion. When the position of the second movable joint component 5 needs to be moved, the second hand wheel 512 is held and pulled or pushed to a position far away from or close to the fixed seat 15, so that the second movable joint component 5 can be moved to a position close to the fixed seat or a position far away from the fixed seat, and the purpose of adjusting the distance between the second movable joint component 5 and the fixed seat 15 is achieved.

As shown in fig. 1 to 4, the first movable joint component 3 and the second movable joint component 5 are both in an unmoved state, and both are close to the fixed seat 15.

As shown in fig. 5 to 7, the first movable joint component 3 moves horizontally from a position close to the fixed seat 15 to a position away from the fixed seat 15, and the second movable joint component 5 is in an unmoved state and is located close to the fixed seat 15. After the first movable joint assembly 3 is moved, the distance between the first meter joint 4 and the second meter joint 6 can be increased.

As shown in fig. 8 to 10, the second movable joint assembly 5 is horizontally moved from a position close to the fixed seat 15 to a position away from the fixed seat 15, and is in an unmoved state by the first movable joint assembly 3 to a position close to the fixed seat 15. After the second movable joint assembly 5 is moved, the distance between the first meter joint 4 and the second meter joint 6 can be increased.

As shown in fig. 11 and 12, the first moving joint component 3 and the second moving joint component 5 both move horizontally from a position close to the fixed seat 15 to a position away from the fixed seat 15. After the first movable joint component 3 and the second movable joint component 5 are respectively moved to the positions far away from the fixed seat 15, the distance between the first meter connector 4 and the second meter connector 6 is further increased.

Additionally, the utility model also provides an instrument calibration equipment, its double-barrelled pressure instrument connecting device with adjustable including above-mentioned content.

The foregoing is merely a preferred embodiment of the invention, which is illustrative and not limiting of the invention. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (16)

1. The utility model provides a double-barrelled pressure instrument connecting device with adjustable, including fixed subassembly (1), its characterized in that, still including be located fixed subassembly (1) both sides, and respectively rather than first removal joint subassembly (3) and second removal joint subassembly (5) of being connected, first removal joint subassembly (3) include the first portion of gripping, second removal joint subassembly (5) include the second portion of gripping, grip portion and second through first portion of gripping and second and can order about first removal joint subassembly (3) and second removal joint subassembly (5) respectively and move between the position of being close to fixed subassembly (1) and keeping away from fixed subassembly (1).

2. The adjustable double tube pressure gauge connection apparatus according to claim 1, wherein the first moving joint assembly (3) and the second moving joint assembly (5) are located at the left and right sides of the fixed assembly (1), respectively, and the first moving joint assembly (3) and the second moving joint assembly (5) can be driven to move in the horizontal direction between a position close to the fixed assembly (1) and a position far away from the fixed assembly (1) by the first holding portion and the second holding portion, respectively.

3. The adjustable double-tube pressure instrument connection according to claim 1 or 2, wherein an intermediate cavity (10) is provided in the fixed assembly (1), a first cavity (301) is provided in the first movable joint assembly (3), a second cavity (501) is provided in the second movable joint assembly (5), and both the first cavity (301) and the second cavity (501) are communicated with the intermediate cavity (10).

4. The adjustable double-tube pressure instrument connecting device according to claim 3, wherein the fixing assembly (1) comprises a fixing seat (15), a first guide tube (11), a second guide tube (12), a first cross bar (13) and a second cross bar (14), the first guide tube (11) and the first cross bar (13) are arranged on one side of the fixing seat (15), and the second guide tube (12) and the second cross bar (14) are arranged on the other side of the fixing seat (15);

a first air guide pipeline (110) is arranged in the first guide pipe (11), a second air guide pipeline (120) is arranged in the second guide pipe (12), the first cavity (301) is located inside the fixed seat (15), and the first air guide pipeline (110) and the second air guide pipeline (120) are communicated with the first cavity (301).

5. The adjustable double tube pressure gauge connection, according to claim 4, characterized in that the ends of the first tube (11) and the first cross bar (13) are placed in a first groove and a second groove, respectively, on one side of the fixed seat (15), and the ends of the second tube (12) and the second cross bar (14) are placed in a third groove and a fourth groove, respectively, on the other side of the fixed seat (15).

6. The adjustable double tube pressure gauge connection apparatus according to claim 5, wherein the first rail (13) comprises a rail portion a (131) and a rail portion b (132), the end of the rail portion b (132) is disposed in the second groove, the diameter of the rail portion a (131) is greater than that of the rail portion b (132), and a stepped portion a is formed at the connection of the rail portion a (131) and the rail portion b (132);

the second cross rod (14) comprises a cross rod part c (141) and a cross rod part d (142), the tail end of the cross rod part d (142) is arranged in the fourth groove, the diameter of the cross rod part c (141) is larger than that of the cross rod part d (142), and a step part b is formed at the connecting position of the cross rod part c (141) and the cross rod part d (142).

7. The adjustable double tube pressure gauge connection according to claim 6, wherein one end of the fixed seat (15) further comprises a threaded hole communicating with the intermediate cavity (10), a portion of the connection head (2) being placed in the threaded hole.

8. The adjustable double tube pressure gauge connection device according to claim 7, wherein the first movable joint assembly (3) comprises a first slider (30), a first stop valve (31) and a first gauge joint (4), the first slider (30) is located at one side of the fixed seat (15) and is movably connected with the fixed seat (15);

the tail end of the first stop valve (31) is arranged in the first sliding block (30) and is used for controlling the opening and closing state of the first cavity (301);

the tail end of the first instrument joint (4) is arranged in the first sliding block (30), and the interior of the first instrument joint is communicated with a pipeline of the first cavity (301).

9. The adjustable double-tube pressure instrument connecting device according to claim 8, wherein the first cavity (301) comprises a first cavity a (3010), a first cavity b (3011) and a first cavity c (3012), the first cavity a (3010) is in pipeline communication with the first cavity b (3011), the first stop valve (31) controls the open and close states of the first cavity b (3011) and the first cavity c (3012), and the inside of the first instrument connector (4) is in pipeline communication with the first cavity c (3012);

the first cavity a (3010) is sleeved on the outer side of the first conduit (11), and the interior of the first cavity a is communicated with the first conduit (110).

10. The adjustable dual tube pressure gauge connection, according to claim 9, wherein said first slider (30) further comprises a through hole portion a (32) which is sleeved outside said first cross bar (13).

11. The adjustable double tube pressure gauge connection apparatus according to claim 10, wherein the through hole portion a (32) comprises a through hole a (320) and a through hole b (321) which are communicated with each other, the hole diameter of the through hole a (320) is larger than that of the through hole b (321), and a stepped portion c is formed at the connection of the through hole a (320) and the through hole b (321);

when the step part a is in contact with the step part c, the moving position of the first cross bar (13) in the through hole part a (32) is limited.

12. The adjustable double tube pressure gauge connection according to claim 7, wherein the second movable joint assembly (5) comprises a second slider (50), a second stop valve (51) and a second gauge joint (6), the second slider (50) is located at one side of the fixed seat (15) and is movably connected with the fixed seat (15);

the tail end of the second stop valve (51) is arranged in the second sliding block (50) and used for controlling the opening and closing states of the second cavity (501);

the tail end of the second instrument joint (6) is arranged in the second sliding block (50), and the inner part of the second instrument joint is communicated with the second cavity (501) through a pipeline.

13. The adjustable double tube pressure instrument connection device according to claim 12, wherein the second cavity (501) comprises a second cavity a (5010), a second cavity b (5011) and a second cavity c (5012), the second cavity a (5010) is in pipeline communication with the second cavity b (5011), a second stop valve (51) controls the opening and closing states of the second cavity b (5011) and the second cavity c (5012), and the inside of the second instrument joint (6) is in pipeline communication with the second cavity c (5012);

the second cavity a (5010) is sleeved on the outer side of the second guide pipe (12), and the inner part of the second cavity a is communicated with the second guide pipe (120).

14. The adjustable dual tube pressure gauge connection, according to claim 13, wherein said second slider (50) further comprises a through hole portion b (52) that fits over the outside of said second rail (14).

15. The adjustable double-tube pressure instrument connecting device according to claim 14, wherein the through hole portion b (52) comprises a through hole c (520) and a through hole d (521) which are communicated with each other, the aperture of the through hole c (520) is larger than that of the through hole d (521), and a stepped portion d is formed at the connecting position of the through hole c (520) and the through hole d (521);

when the step b is in contact with the step d, the moving position of the second rail (14) in the through hole b (52) is defined.

16. A meter verification device comprising an adjustable double tube pressure meter connection according to any one of claims 1 to 15.

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