Adjustable Instrument Connection Component and Instrument Calibration Equipment

Abstract

The present invention provides an adjustable instrument connection component and an instrument calibration device, which includes a fixed component with an intermediate cavity inside. It also includes a first movable joint component and a second movable joint component located on both sides of the fixed component and respectively connected thereto. The first movable joint component and / or the second movable joint component can move horizontally. A first cavity is provided inside the first movable joint component, and a second cavity is provided inside the second movable joint component. The first cavity and the second cavity are respectively communicated with the intermediate cavity. By controlling the distances that the first movable joint component and the second movable joint component move left and right horizontally relative to the fixed seat, the present invention adjusts the distance between the first movable joint component and the second movable joint component to adapt to a double-tube pressure instrument with different distances between two joints.

Description

Technical Field

[0001] The present invention relates to an instrument connection component, and in particular to an adjustable instrument connection component and an instrument calibration device. Background Art

[0002] Currently, the pressure gauges used on railway locomotives are usually double-tube pressure gauges. The pressure gauge has two interfaces and a dial. There are two pointers in the dial, which can simultaneously indicate the pressures of the gases connected to the two interfaces. During the calibration process of the double-tube pressure gauge, it is necessary to connect the gas path of the double-tube pressure gauge to an external gas source through an instrument connection component. The external gas source provides a certain pressure of gas to the double-tube pressure gauge through the instrument connection component, and the double-tube pressure gauge is calibrated by reading the indication values of the two pointers on the double-tube pressure gauge. However, there are various specifications for double-tube pressure gauges, and the distances between the two interfaces are not the same. Therefore, when calibrating the double-tube pressure gauge, it is very inconvenient to connect the gas path between the external gas source and the double-tube pressure gauge. Summary of the Invention

[0003] Aiming at the deficiencies in the above problems, the present invention provides an adjustable instrument connection component and an instrument calibration device, which can adjust the distance between the first movable joint component and the second movable joint component to adapt to the double-tube pressure gauges with different distances between the two joints.

[0004] To achieve the above object, the present invention provides an adjustable instrument connection component, which includes a fixed component 1 with an intermediate cavity 10 provided therein, and further includes a first movable joint component 3 and a second movable joint component 5 located on both sides of the fixed component 1 and respectively connected thereto. The first movable joint component 3 and / or the second movable joint component 5 can move in the horizontal direction.

[0005] A first cavity 301 is provided in the first movable joint component 3, and a second cavity 501 is provided in the second movable joint component 5. The first cavity 301 and the second cavity 501 are respectively communicated with the intermediate cavity 10.

[0006] Preferably, the first movable joint component 3 and the second movable joint component 5 are respectively located on the left and right sides of the fixed component 1 and can move horizontally between a position close to the fixed component 1 and a position far from the fixed component 1.

[0007] Preferably, the fixed component 1 includes a fixed seat 15, a first conduit 11, a second conduit 12, a first cross bar 13 and a second cross bar 14. The first conduit 11 and the first cross bar 13 are placed on one side of the fixed seat 15, and the second conduit 12 and the second cross bar 14 are placed on the other side of the fixed seat 15.

[0008] The first conduit 11 is internally provided with a first gas conduit 110, and the second conduit 12 is internally provided with a second gas conduit 120. The first cavity 301 is located inside the fixing seat 15, and both the first gas conduit 110 and the second gas conduit 120 communicate with the first cavity 301.

[0009] Preferably, the end of the first conduit 11 and the end of the first cross bar 13 are respectively placed in a first groove and a second groove on one side of the fixing seat 15, and the end of the second conduit 12 and the end of the second cross bar 14 are placed in a third groove and a fourth groove on the other side of the fixing seat 15.

[0010] Preferably, the first cross bar 13 includes a cross bar portion a 131 and a cross bar portion b 132. The end of the cross bar portion b 132 is placed in the second groove. The diameter of the cross bar portion a 131 is greater than the diameter of the cross bar portion b 132, and a step portion a is formed at the connection between the cross bar portion a 131 and the cross bar portion b 132.

[0011] The second cross bar 14 includes a cross bar portion c 141 and a cross bar portion d 142. The end of the cross bar portion d 142 is placed in the fourth groove. The diameter of the cross bar portion c 141 is greater than the diameter of the cross bar portion d 142, and a step portion b is formed at the connection between the cross bar portion c 141 and the cross bar portion d 142.

[0012] Preferably, one end of the fixing seat 15 further includes a threaded hole communicating with the intermediate cavity 10, and a part of the connecting head 2 is placed in the threaded hole.

[0013] Preferably, the first mobile joint assembly 3 includes a first slider 30, a first stop valve 31 and a first instrument joint 4. The first slider 30 is located on one side of the fixing seat 15 and is movably connected to the fixing seat 15;

[0014] The end of the first stop valve 31 is placed inside the first slider 30 for controlling the opening and closing state of the first cavity 301;

[0015] The end of the first instrument joint 4 is placed inside the first slider 30, and its interior is in pipeline communication with the first cavity 301.

[0016] Preferably, the first cavity 301 includes a first chamber a 3010, a first chamber b 3011 and a first chamber c 3012. The first chamber a 3010 is in pipeline communication with the first chamber b 3011. The first stop valve 31 controls the opening and closing state of the first chamber b 3011 and the first chamber c 3012. The interior of the first instrument joint 4 is in pipeline communication with the first chamber c 3012;

[0017] The first chamber a 3010 is sleeved outside the first conduit 11, and its interior is connected to the first gas conduit 110.

[0018] Preferably, the first slider 30 further includes a through-hole portion a32, which is sleeved outside the first cross bar 13.

[0019] Preferably, the through-hole portion a32 includes a through-hole a320 and a through-hole b321 that are connected and communicate 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 between the through-hole a320 and the through-hole b321;

[0020] When the step portion a contacts the step portion c, the moving position of the first cross bar 13 in the through-hole portion a32 is defined.

[0021] Preferably, the second moving joint assembly 5 includes a second slider 50, a second stop valve 51 and a second instrument joint 6. The second slider 50 is located on one side of the fixed seat 15 and is movably connected to the fixed seat 15;

[0022] The end of the second stop valve 51 is placed inside the second slider 50 for controlling the opening and closing state of the second cavity 501;

[0023] The end of the second instrument joint 6 is placed inside the second slider 50, and its interior is in pipeline communication with the second cavity 501.

[0024] Preferably, the second cavity 501 includes a second cavity a5010, a second cavity b5011 and a second cavity c5012. The second cavity a5010 is in pipeline communication with the second cavity b5011. The second stop valve 51 controls the opening and closing state of the second cavity b5011 and the second cavity c5012. The interior of the second instrument joint 6 is in pipeline communication with the second cavity c5012;

[0025] The second cavity a5010 is sleeved outside the second conduit 12, and its interior is in communication with the second gas conduit 120.

[0026] Preferably, the second slider 50 further includes a through-hole portion b52, which is sleeved outside the second cross bar 14.

[0027] Preferably, the through-hole portion b52 includes a through-hole c520 and a through-hole d521 that are connected and communicate with each other. The aperture of the through-hole c520 is larger than that of the through-hole d521, and a step portion d is formed at the connection between the through-hole c520 and the through-hole d521;

[0028] When the step portion b contacts the step portion d, the moving position of the second cross bar 14 in the through-hole portion b52 is defined.

[0029] The present invention also provides an instrument calibration device, including the adjustable instrument connection component described in any one of the above.

[0030] Compared with the prior art, the present invention has one of the following advantages:

[0031] Since the first movable joint assembly and the second movable joint assembly can move left and right relative to the fixed seat in the horizontal direction, the distance between the first movable joint assembly and the second movable joint assembly can be adjusted to adapt to the double-tube pressure gauge with different distances between the two joints;

[0032] Since the first movable joint assembly and the second movable joint assembly have the same structure, the same weight, and are correspondingly located on the left and right sides of the fixed seat, the adjustable instrument connecting component can maintain a balanced state;

[0033] By adding a first handwheel and a second handwheel outside the first slider and the second slider, it is convenient to push and pull the first movable joint assembly and the second movable joint through the first handwheel and the second handwheel to move the first movable joint assembly and the second movable joint to the designated position;

[0034] By respectively arranging the first stop valve and the second stop valve on the first slider and the second slider, the weight of the first instrument joint and the second instrument joint can be reduced, the fracture between the instrument joint and the slider can be avoided, and it is also convenient to control the opening and closing states of the first cavity and the second cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a structural diagram of the present invention;

[0036] Figure 2 is Figure 1 the top view in;

[0037] Figure 3 is Figure 1 the bottom view of;

[0038] Figure 4 is Figure 1 the sectional view of;

[0039] Figure 5 is a structural diagram after the first movable joint assembly moves;

[0040] Figure 6 is Figure 5 the sectional view of;

[0041] Figure 7 is Figure 6 the enlarged view of part A in;

[0042] Figure 8 is a structural diagram after the second movable joint assembly moves;

[0043] Figure 9 is Figure 7Cross-sectional view;

[0044] Figure 10 is Figure 9 An enlarged view of part B in

[0045] Figure 11 is a structural diagram after the first moving joint assembly and the second moving joint assembly are moved;

[0046] Figure 12 is Figure 11 Cross-sectional view.

[0047] The main reference numerals are as follows:

[0048] 1 - Fixed assembly; 10 - Intermediate cavity; 11 - First conduit; 110 - First gas conduit; 12 - Second conduit; 120 - Second gas conduit; 13 - First cross bar; 131 - Cross bar part a; 132 - Cross bar part b; 14 - Second cross bar; 15 - Fixed seat;

[0049] 2 - Connector;

[0050] 3 - First moving joint assembly; 30 - First slider; 301 - First cavity; 3010 - First cavity a; 3011 - First cavity b; 3012 - First cavity c; 31 - First stop valve; 310 - First valve body; 311 - First valve needle; 312 - First handwheel; 32 - Through hole part a; 320 - Through hole a; 321 - Through hole b;

[0051] 4 - First instrument joint; 40 - Quick - connect nut a; 41 - Quick - connect rod a;

[0052] 5 - Second moving joint assembly; 50 - Second slider; 501 - Second cavity; 5010 - Second cavity a; 5011 - Second cavity b; 5012 - Second cavity c; 51 - Second stop valve; 510 - Second valve body; 511 - Second valve needle; 512 - Second handwheel; 52 - Through hole part b; 520 - Through hole c; 521 - Through hole d;

[0053] 6 - Second instrument joint; 60 - Quick - connect nut c; 61 - Quick - connect rod b Detailed implementation manner

[0054] As Figures 1 to 12 shown, the present invention provides an adjustable instrument connection component, including a fixed assembly 1 with an intermediate cavity 10 inside, a first moving joint assembly 3 with a first cavity 301 inside, a second moving joint assembly 5 with a second cavity 501 inside, and a connector 2 that is in pipeline communication with the fixed assembly 1. Among them, both the first moving joint assembly 3 and the second moving joint assembly 5 are movably connected to the fixed assembly 1, and the first cavity 301 and the second cavity 501 are both in communication with the intermediate cavity 10.

[0055] The first movable joint assembly 3 and the second movable joint assembly 5 are located on the left and right sides of the fixed assembly 1 respectively, and at least one of the first movable joint assembly 3 and the second movable joint assembly 5 can move horizontally relative to the fixed assembly 1.

[0056] The fixed assembly 1 includes a fixed seat 15, a first conduit 11, a second conduit 12, a first cross bar 13 and a second cross bar 14. The end of the first conduit 11 and the end of the first cross bar 13 are respectively placed in a first groove (not shown in the figure) and a second groove (not shown in the figure) on one side of the fixed seat 15, and the end of the second conduit 12 and the end of the second cross bar 14 are placed in a third groove (not shown in the figure) and a fourth groove (not shown in the figure) on the other side of the fixed seat 15.

[0057] Among them, the first conduit 11 and the first cross bar 13 are arranged vertically, and both are placed in a first groove (not shown in the figure) and a second groove (not shown in the figure) on one side of the fixed seat 15. The second conduit 12 and the second cross bar 14 are arranged vertically, and both are placed in a third groove (not shown in the figure) and a fourth groove (not shown in the figure) on the other side of the fixed seat 15.

[0058] A first gas conduit 110 is provided inside the first conduit 11, a second gas conduit 120 is provided inside the second conduit 12, a first cavity 301 is located inside the fixed seat 15, and both the first gas conduit 110 and the second gas conduit 120 communicate with the first cavity 301.

[0059] In this embodiment, the first conduit 11 is located on the left side of the fixed seat 15, the second conduit 12 is located on the right side of the fixed seat 15, their positions correspond to each other and are at the same horizontal level, and the first gas conduit 110 is connected to the second gas conduit 120 through a part of the first cavity 301.

[0060] In addition, sealing rings are respectively sleeved on the outer wall surfaces of the first conduit 11 and the second conduit 12.

[0061] In this embodiment, the first cross bar 13 is located on the left side of the fixed seat 15, the second cross bar 14 is located on the right side of the fixed seat 15, their positions correspond to each other and are at the same horizontal level.

[0062] The first cross bar 13 includes a cross bar part a 131 and a cross bar part b 132. The end of the cross bar part b 132 is placed in the second groove. The diameter of the cross bar part a 131 is larger than that of the cross bar part b 132, and a step part a is formed at the connection of the cross bar part a 131 and the cross bar part b 132.

[0063] The second crossbar 14 includes a crossbar portion c141 and a crossbar portion d142. The end of the crossbar portion d142 is placed in the fourth groove. The diameter of the crossbar portion c141 is greater than that of the crossbar portion d142, and a step portion b is formed at the connection between the crossbar portion c141 and the crossbar portion d142.

[0064] In addition, one end of the fixed seat 15 further includes a threaded hole (not shown in the figure) communicating with the intermediate cavity 10. A part of the connecting head 2 is placed in the threaded hole (not shown in the figure), so that the inside of the connecting head 2 can communicate with the intermediate cavity 10.

[0065] In this embodiment, the connecting head cavity is located at the bottom end of the fixed seat 2. A part of the connecting head 2 is placed in the fixed seat 15 through the connecting head cavity, so that its inside communicates with the first cavity 301.

[0066] In the fixing assembly 1, the first moving joint assembly 3 and the first crossbar 13 are arranged on the left side of the fixed seat 15 through the first conduit 11, and can move 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 crossbar 13.

[0067] The second moving joint assembly 5 and the second crossbar 14 are arranged on the right side of the fixed seat 15 through the second conduit 12, and can move 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 crossbar 14.

[0068] The first moving joint assembly 3 includes a first slider 30, a first stop valve 31 and a first instrument joint 4. The first slider 30 is located on the left side of the fixed seat 15 and is movably connected to the fixed seat 15. The end of the first stop valve 31 is placed inside the first slider 30 for controlling the opening and closing state of the first cavity 301. The end of the first instrument joint 4 is placed inside the first slider 30, and its inside is in pipeline communication with the first cavity 301.

[0069] 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 in pipeline communication with the first cavity b3011. The inside of the first instrument joint 4 is in pipeline communication with the first cavity c3012.

[0070] In this embodiment, the first instrument joint 4 is arranged at the top position of the first slider 30, and the first stop valve 31 is located on one side, and its end is placed inside the first slider 30 from the outside of the first slider 30.

[0071] The first stop valve 31 includes a first valve body 310, a first valve needle 311 and a first handwheel 312. Among them, the position of the first handwheel 312 is outside the first slider 30 and away from the fixed seat 15. The first valve body 310 is placed inside the first slider 30. A part of the first valve needle 311 is placed inside the first valve body 310, and the other part is placed outside the first valve body 310 and is connected to the first handwheel 312. By operating the first handwheel 312, the first valve needle 311 is controlled to move, thereby controlling the opening and closing states of the first cavity b3011 and the first cavity c3012.

[0072] Among them, when the first handwheel 312 controls the end of the first valve needle 311 to move in the direction close to the fixed seat 15, the first cavity b3011 and the first cavity c3012 can be converted from the open state to the closed state. When the first handwheel 312 controls the end of the first valve needle 311 to move in the direction away from the fixed seat 15, the first cavity b3011 and the first cavity c3012 can be converted from the closed state to the open state.

[0073] When the first stop valve 31 controls the first cavity b3011 and the first cavity c3012 to be in the open state, the first cavity a3010 is successively connected to the inside of the first cavity b3011, the first cavity c3012 and the first instrument joint 4. When the first stop valve 31 controls the first cavity b3011 and the first cavity c3012 to be in the closed state, the first cavity a3010 cannot be connected to the inside of the first instrument joint 4.

[0074] In addition, when the first conduit 11 moves in the first cavity a3010, in order to increase the sealing effect between the first gas conduit 110 in the first conduit 11 and the first cavity a3010, a sealing ring is also sleeved on the outer wall surface of the first conduit 11.

[0075] The first slider 30 further includes a through-hole part a32, which includes a through-hole a320 and a through-hole b321 that are connected. The aperture of the through-hole a320 is larger than the aperture of the through-hole b321, and a step part c is formed at the connection between the through-hole a320 and the through-hole b321.

[0076] The first instrument joint 4 includes a quick-connect nut a40 and a quick-connect rod a41. The end of the quick-connect rod a41 is detachably placed in a joint cavity (not shown in the figure) at the top of the first slider 30. Among them, a fluid conduit a is provided inside the quick-connect rod a41, and it is connected to the internal space a of the quick-connect nut a40.

[0077] When the first shut-off valve 31 controls the opening state between the first cavity b3011 and the first cavity c3012, the first cavity a3010 is sequentially communicated with the interior of the fluid pipeline a provided in the first cavity b3011, the first cavity c3012, the quick-connect rod a41, and the interior space a of the quick-connect nut a40.

[0078] When the first moving joint assembly 3 needs to be assembled at the left position of the fixed seat 15, the first conduit 11 is movably placed in the first cavity a3010, and the first cross bar 13 is movably placed in the through-hole portion a32.

[0079] Since the first conduit 11 is placed inside the first cavity a3010, the intermediate cavity 10 is in pipeline communication with the first cavity a3010, and the pressure medium can be input into the first cavity a3010 through the intermediate cavity 10.

[0080] When the first cross bar 13 moves inside the through-hole portion a32, when the step portion a contacts the step portion c, the moving position of the first cross bar 13 in the through-hole portion a32 can be limited.

[0081] Since the first hand wheel 312 is placed outside the first slider 30, when the position of the first moving joint assembly 3 needs to be moved, only by holding the first hand wheel 312 and pulling or pushing it away from or closer to the fixed seat 15, the first moving joint assembly 3 can be moved to a position closer to or farther from the fixed seat 15, so as to achieve the purpose of adjusting the distance between the first moving joint assembly 3 and the fixed seat 15.

[0082] The second moving joint assembly 5 includes a second slider 50, a second shut-off valve 51, and a second instrument joint 6. The second slider 50 is located on the right side of the fixed seat 15 and is movably connected to the fixed seat 15. The end of the second shut-off valve 51 is placed inside the second slider 50 and is used to control the opening and closing state of the second cavity 501. The end of the second instrument joint 6 is placed inside the second slider 50, and its interior is in pipeline communication with the second cavity 501.

[0083] 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 is in pipeline communication with the second cavity b5011, and the interior of the second instrument joint 6 is in pipeline communication with the second cavity c5012.

[0084] In this embodiment, the second instrument joint 6 is arranged at the top position of the second slider 50, and the second shut-off valve 51 is horizontally arranged on one side of the second slider 50, and its end is placed inside from the outside of the second slider 50.

[0085] The second stop valve 51 includes a second valve body 510, a second valve needle 511 and a second handwheel 512. Among them, the second handwheel 512 is located outside the second slider 50 and away from the fixed seat 15. The second valve body 510 is placed inside the second slider 50. A part of the second valve needle 511 is placed inside the second valve body 510, and the other part is placed outside the second valve body 510 and connected to the second handwheel 512. By operating the second handwheel 512, the second valve needle 511 is controlled to move, thereby controlling the opening and closing states of the second cavity b5011 and the second cavity c5012.

[0086] Among them, when the second handwheel 512 controls the end of the second valve needle 511 to move towards the fixed seat 15, the second cavity b5011 and the second cavity c5012 can be converted from the open state to the closed state. When the second handwheel 512 controls 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 converted from the closed state to the open state.

[0087] When the second stop valve 51 controls the second cavity b5011 and the second cavity c5012 to be in the open state, the second cavity a5010 is sequentially connected to the inside of the second cavity b5011, the second cavity c5012 and the second instrument joint 6. When the second stop valve 51 controls the second cavity b5011 and the second cavity c5012 to be in the closed state, the second cavity a5010 cannot be connected to the inside of the second instrument joint 6.

[0088] In addition, when the second conduit 12 moves in the second cavity a5010, in order to increase the sealing effect between the second gas conduit 120 in the second conduit 12 and the second cavity a5010, a sealing ring is also sleeved on the outer wall surface of the second conduit 12.

[0089] The second slider 50 further includes a through-hole portion b52, which includes a through-hole c520 and a through-hole d521 that are connected. The aperture of the through-hole c520 is larger than the aperture of the through-hole d521, and a step portion d is formed at the connection between the through-hole c520 and the through-hole d521.

[0090] The second instrument joint 6 includes a quick-connect nut b60 and a quick-connect rod b61. The end of the quick-connect rod b61 is detachably placed in a joint cavity (not shown in the figure) at the top of the second slider 50. Among them, a fluid pipeline b is provided inside the quick-connect rod b61, which is communicated with the internal space b of the quick-connect nut b60.

[0091] When the second shut-off valve 51 controls the open state between the second cavity b5011 and the second cavity c5012, the second cavity a5010 is sequentially communicated with the internal space b of the fluid pipeline b provided inside the second cavity b5011, the second cavity c5012, the quick-connect rod b61, and the quick-connect nut b60.

[0092] When the second moving joint assembly 5 needs to be assembled on the right side of the fixed seat 15, the second conduit 12 can be movably placed in the second cavity a5010, and the second cross bar 14 can be movably placed in the through-hole part b52.

[0093] Since the second conduit 12 is placed inside the second cavity a5010, the intermediate cavity 10 is in pipeline communication with the second cavity a5010, and the pressure medium can be input into the second cavity a5010 through the intermediate cavity 10. If the state between the second cavity b5011 and the second cavity c5012 is open, the pressure medium can be sequentially input into the inside of the second instrument joint 6 through the second cavity b5011 and the second cavity c5012.

[0094] When the second cross bar 14 moves inside the through-hole part b52, when the step part b contacts the step part d, the moving position of the second cross bar 14 in the through-hole part b52 can be limited.

[0095] Since the second hand wheel 512 is placed outside the second slider 50, when it is necessary to move the position of the second moving joint assembly 5, only need to hold the second hand wheel 512 and pull or push it to a position away from or close to the fixed seat 15, then the second moving joint assembly 5 can be moved to a position close to the fixed seat or a position away from the fixed seat, so as to achieve the purpose of adjusting the distance between the second moving joint assembly 5 and the fixed seat 15.

[0096] As Figures 1 to 4 shown, both the first moving joint assembly 3 and the second moving joint assembly 5 are in the unmoved state, and both are close to the fixed seat 15.

[0097] As Figures 5 to 7 shown, the first moving joint assembly 3 moves horizontally from a position close to the fixed seat 15 to a position away from the fixed seat 15, and the second moving joint assembly 5 is in the unmoved state and is located at a position close to the fixed seat 15. After the first moving joint assembly 3 moves, the distance between the first instrument joint 4 and the second instrument joint 6 can be increased.

[0098] As Figures 8 to 10As shown, the second movable joint assembly 5 moves horizontally from a position close to the fixed seat 15 to a position far away from the fixed seat 15. The first movable joint assembly 3 is in an unmoved state and is located at a position close to the fixed seat 15. After the second movable joint assembly 5 moves, the distance between the first instrument joint 4 and the second instrument joint 6 can be increased.

[0099] As Figure 11 shown Figure 12 As shown, both the first movable joint assembly 3 and the second movable joint assembly 5 move horizontally from a position close to the fixed seat 15 to a position far away from the fixed seat 15. After the first movable joint assembly 3 and the second movable joint assembly 5 respectively move to positions far away from the fixed seat 15, the distance between the first instrument joint 4 and the second instrument joint 6 is further increased.

[0100] In addition, the present invention also provides an instrument calibration device, which includes the adjustable instrument connection component described above.

[0101] The above is only a preferred embodiment of the present invention, which is illustrative rather than restrictive to the invention. Those skilled in the art understand that many changes, modifications, or even equivalents can be made within the spirit and scope defined by the claims of the invention, but all will fall within the protection scope of the present invention.

Claims

1. An adjustable instrument connection component, comprising a fixed component (1) with an intermediate cavity (10) provided therein, characterized in that, It further includes a first movable joint assembly (3) and a second movable joint assembly (5) located on both sides of the fixed assembly (1) and respectively connected thereto. The first movable joint assembly (3) and / or the second movable joint assembly (5) can move horizontally; A first cavity (301) is provided inside the first movable joint assembly (3), and a second cavity (501) is provided inside the second movable joint assembly (5). The first cavity (301) and the second cavity (501) are respectively communicated with the intermediate cavity (10); The fixed assembly (1) includes a fixed seat (15), a first conduit (11), a second conduit (12), a first cross bar (13) and a second cross bar (14). The first conduit (11) and the first cross bar (13) are placed on one side of the fixed seat (15), and the second conduit (12) and the second cross bar (14) are placed on the other side of the fixed seat (15); A first gas conduit (110) is provided inside the first conduit (11), and a second gas conduit (120) is provided inside the second conduit (12). The first cavity (301) is located inside the fixed seat (15), and both the first gas conduit (110) and the second gas conduit (120) are communicated with the first cavity (301); The end of the first conduit (11) and the end of the first cross bar (13) are respectively placed in a first groove and a second groove on one side of the fixed seat (15), and the end of the second conduit (12) and the end of the second cross bar (14) are placed in a third groove and a fourth groove on the other side of the fixed seat (15); The first movable joint assembly (3) includes a first slider (30), a first stop valve (31) and a first instrument joint (4). The first slider (30) is located on one side of the fixed seat (15) and is movably connected to the fixed seat (15); The end of the first stop valve (31) is placed inside the first slider (30) for controlling the opening and closing state of the first cavity (301); The end of the first instrument joint (4) is placed inside the first slider (30), and its interior is in pipeline communication with the first cavity (301); The first cavity (301) includes a first chamber a (3010), a first chamber b (3011) and a first chamber c (3012). The first chamber a (3010) is in pipeline communication with the first chamber b (3011). The first stop valve (31) controls the opening and closing state of the first chamber b (3011) and the first chamber c (3012), and the interior of the first instrument joint (4) is in pipeline communication with the first chamber c (3012); The first chamber a (3010) is sleeved outside the first conduit (11), and its interior is connected to the first gas conduit (110); The second movable joint assembly (5) includes a second slider (50), a second stop valve (51) and a second instrument joint (6). The second slider (50) is located on one side of the fixed seat (15) and is movably connected to the fixed seat (15); The end of the second stop valve (51) is placed inside the second slider (50) for controlling the opening and closing state of the second cavity (501); The end of the second instrument joint (6) is placed inside the second slider (50), and its interior is in pipeline communication with the second cavity (501).

2. The adjustable instrument connecting component according to claim 1, characterized in that, The corresponding first movable joint assembly (3) and second movable joint assembly (5) are respectively located on the left and right sides of the fixed assembly (1), and can move horizontally between a position close to the fixed assembly (1) and a position away from the fixed assembly (1).

3. The adjustable instrument connection component according to claim 1, characterized in that, The first cross bar (13) includes a cross bar portion a (131) and a cross bar portion b (132). The end of the cross bar portion b (132) is placed in the second groove. The diameter of the cross bar portion a (131) is larger than that of the cross bar portion b (132), and a step portion a is formed at the connection between the cross bar portion a (131) and the cross bar portion b (132). The second cross bar (14) includes a cross bar portion c (141) and a cross bar portion d (142). The end of the cross bar portion d (142) is placed in the fourth groove. The diameter of the cross bar portion c (141) is larger than that of the cross bar portion d (142), and a step portion b is formed at the connection between the cross bar portion c (141) and the cross bar portion d (142).

4. The adjustable instrument connection component according to claim 3, characterized in that, One end of the fixed seat (15) further includes a threaded hole in communication with the intermediate cavity (10), and a part of the connector (2) is placed in the threaded hole.

5. The adjustable instrument connecting component according to claim 4, characterized in that, The first slider (30) further includes a through hole portion a (32), which is sleeved outside the first cross bar (13).

6. The adjustable instrument connecting component according to claim 5, characterized in that, The through hole portion a (32) includes a through hole a (320) and a through hole b (321) that are connected. The aperture of the through hole a (320) is larger than that of the through hole b (321), and a step portion c is formed at the connection between the through hole a (320) and the through hole b (321). When the step portion a contacts the step portion c, the moving position of the first cross bar (13) in the through hole portion a (32) is limited.

7. The adjustable instrument connection component according to claim 6, characterized in that, The second cavity (501) includes 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). The second shut-off valve (51) controls the opening and closing states of the second cavity b (5011) and the second cavity c (5012). The interior of the second instrument joint (6) is in pipeline communication with the second cavity c (5012). The second cavity a (5010) is sleeved outside the second conduit (12), and its interior is connected to the second gas conduit (120).

8. The adjustable instrument connecting component according to claim 7, characterized in that, The second slider (50) further includes a through hole portion b (52), which is sleeved outside the second cross bar (14).

9. The adjustable instrument connecting component according to claim 8, characterized in that, The through hole portion b (52) includes a through hole c (520) and a through hole d (521) that are connected. The aperture of the through hole c (520) is larger than that of the through hole d (521), and a step portion d is formed at the connection between the through hole c (520) and the through hole d (521). When the step portion b contacts the step portion d, the moving position of the second cross bar (14) in the through hole portion b (52) is limited.

10. An instrument calibration device, characterized in that, Including the adjustable instrument connecting component according to any one of claims 1 to 9.

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