Valve clamping structure and testing device

Abstract

The utility model relates to a valve clamping structure and a test device, and relates to the technical field of brake valves. The valve clamping structure comprises a rotary seat table, a first clamp assembly and a second clamp assembly. The rotating seat table comprises a first mounting surface, a second mounting surface and a third mounting surface, included angles are respectively formed between the first mounting surface and the third mounting surface as well as between the second mounting surface and the third mounting surface, and an included angle is formed between the first mounting surface and the second mounting surface; the first clamp assembly is arranged on the first mounting surface and is used for clamping a first valve of the brake valve and a second valve of the brake valve; the second clamp assembly is arranged on the second installation face and used for clamping an emergency valve of the brake valve. According to the technical scheme disclosed by the utility model, the problems of low efficiency and time and labor waste caused by the fact that an operator needs to frequently and manually carry and switch the clamps due to the fact that three different clamps are respectively used by three valve bodies of the brake valve in the existing test process can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake valves, in particular to a valve clamping structure and a testing device. Background Art

[0002] As one of the commonly used braking devices, the brake valve is an indispensable equipment for the safe operation of railways. The assembly and testing of brake valves are generally completed manually, especially the test stage cannot be automated. The existing brake valves include three valve bodies: 120H valve, 120H-1, and emergency valve. During the test process, the three valve bodies use three different fixtures respectively. Operators need to frequently manually move and switch fixtures, which is inefficient, time-consuming and labor-intensive, resulting in extended production time and low production efficiency. Utility Model Content

[0003] The embodiments of the utility model provide a valve clamping structure and a test device, which can solve the problem that in the existing test process, because three valve bodies of the brake valve use three different clamps respectively, the operator needs to manually move and switch the clamps frequently, resulting in low efficiency, time and labor.

[0004] In a first aspect, an embodiment of the utility model provides a valve clamping structure, comprising:

[0005] The swivel table comprises a first mounting surface, a second mounting surface and a third mounting surface, wherein the first mounting surface and the second mounting surface respectively have an angle with the third mounting surface, and the first mounting surface and the second mounting surface have an angle with each other;

[0006] A first clamp assembly is arranged on the first mounting surface, and the first clamp assembly is used to clamp a first valve of the brake valve and a second valve of the brake valve;

[0007] The second clamp assembly is arranged on the second mounting surface, and the second clamp assembly is used for clamping the emergency valve of the brake valve.

[0008] In one embodiment, the turntable is a right triangular prism turntable, the first mounting surface, the second mounting surface and the third mounting surface are respectively located on three side surfaces of the right triangular prism turntable, and the angle between the first mounting surface and the second mounting surface is 90°.

[0009] In one embodiment, the first clamp assembly comprises:

[0010] The first parallel cylinder comprises a first main slide and a first auxiliary slide which are arranged opposite to each other in the first direction of the rotary table, wherein the first main slide and the first auxiliary slide can move along the first direction and move in opposite directions;

[0011] Two first main positioning sleeves are arranged on the first main slide, the two first main positioning sleeves are arranged at intervals along the second direction of the rotary table, and the first main positioning sleeves are used for inserting a nut on one side of the first valve;

[0012] The first pair of positioning sleeves is arranged on the first pair of slides, and the first pair of positioning sleeves is used for inserting the nut on the other side of the first valve.

[0013] In one embodiment, the first clamp assembly further comprises:

[0014] Two second main positioning sleeves are arranged on the first main slide, the two second main positioning sleeves are arranged at intervals along the second direction of the rotary table, and the second main positioning sleeves are used for inserting the nut on one side of the second valve;

[0015] A second pair of positioning sleeves, arranged on the first pair of slides, the second pair of positioning sleeves being used for inserting the nut on the other side of the second valve;

[0016] Among them, the two second main positioning sleeves are located on the side of the two first main positioning sleeves away from the first mounting surface, and the two second main positioning sleeves correspond one-to-one to the two first main positioning sleeves, and the second main positioning sleeves are located on the side of the corresponding first main positioning sleeves away from the second mounting surface; the second secondary positioning sleeves are located on the side of the first secondary positioning sleeve away from the first mounting surface, and the second secondary positioning sleeves are located on the side of the first secondary positioning sleeve away from the second mounting surface.

[0017] In one embodiment, the first main positioning sleeve, the first auxiliary positioning sleeve, the second main positioning sleeve and the second auxiliary positioning sleeve all extend along the first direction, the length of the first main positioning sleeve in the first direction is greater than the length of the second main positioning sleeve in the first direction, and the length of the first auxiliary positioning sleeve in the first direction is less than the length of the second auxiliary positioning sleeve in the first direction.

[0018] In one embodiment, the first main positioning sleeve and the first auxiliary positioning sleeve are respectively provided with a first positioning hole for inserting the nut of the first valve; the second main positioning sleeve and the second auxiliary positioning sleeve are respectively provided with a second positioning hole for inserting the nut of the second valve.

[0019] In one embodiment, the first clamp assembly further comprises:

[0020] a first in-position detection sensor, which is disposed on the first main slide, the first in-position detection sensor being located between the two first main positioning sleeves, and the first in-position detection sensor being located on a side of the first main positioning sleeve close to the first mounting surface, and the first in-position detection sensor being used to detect a position of the first valve to determine whether the first valve is clamped in place;

[0021] The second in-position detection sensor is arranged on the first main slide, the second in-position detection sensor is located between the two second main positioning sleeves, and the second in-position detection sensor is located on the side of the second main positioning sleeve close to the first mounting surface, and the second in-position detection sensor is used to detect the position of the second valve to determine that the second valve is clamped in place.

[0022] In one embodiment, the second clamp assembly comprises:

[0023] The second parallel cylinder comprises a second main slide and a second auxiliary slide which are arranged opposite to each other in the first direction of the rotary table, and the second main slide and the second auxiliary slide can move along the first direction and move in opposite directions;

[0024] Two third main positioning sleeves are arranged on the second main slide, and the two third main positioning sleeves are arranged at intervals along the third direction of the rotary table, and the third main positioning sleeves are used for inserting the nut on one side of the emergency valve;

[0025] Two third positioning sleeves are arranged on the second slide, and the third positioning sleeves are used for inserting the nut on the other side of the emergency valve;

[0026] A fourth positioning sleeve is arranged on the second auxiliary slide, the fourth positioning sleeve is located between the two third auxiliary positioning sleeves, and the fourth positioning sleeve is located on a side of the third auxiliary positioning sleeve close to the second mounting surface.

[0027] In one embodiment, the second clamp assembly also includes a third in-situ detection sensor, which is arranged on the second main slide. The third in-situ detection sensor is located on the side of the third main positioning sleeve close to the second mounting surface. The third in-situ detection sensor is used to detect the position of the emergency valve to determine that the emergency valve is clamped in place.

[0028] In a second aspect, an embodiment of the utility model provides a test device, including a box body and the valve clamping structure as described above.

[0029] Compared with the prior art, the advantages of the embodiments of the utility model are that by setting the first clamp assembly to clamp the first valve and the second valve of the brake valve, and setting the second clamp assembly to clamp the emergency valve of the brake valve, the clamping of three different valves can be achieved on one clamping structure, and the operator does not need to carry the clamp or switch the clamp, which saves manpower and material resources and improves production efficiency. In addition, by setting the first clamp assembly and the second clamp assembly on the first mounting surface and the second mounting surface of the turntable, respectively, the operator can switch the first clamp assembly and the second clamp assembly by rotating the turntable, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0031] Figure 1 It is a structural schematic diagram of a valve clamping structure provided by an embodiment of the utility model at a first viewing angle;

[0032] Figure 2 yes Figure 1 A schematic structural diagram of a valve clamping structure provided in the embodiment at a second viewing angle;

[0033] Figure 3 yes Figure 1 A schematic structural diagram of a valve clamping structure provided in the embodiment in the third perspective;

[0034] Figure 4 yes Figure 1 A schematic structural diagram of a valve clamping structure provided in the embodiment in the fourth viewing angle;

[0035] Figure 5 yes Figure 1 A schematic diagram of the cooperation between the first clamp assembly and the first valve provided in the embodiment;

[0036] Figure 6 yes Figure 1 A schematic diagram of the structure of a first valve provided in the embodiment;

[0037] Figure 7 yes Figure 1 A schematic structural diagram of the first valve provided in the embodiment in another perspective;

[0038] Figure 8 yes Figure 1 A schematic diagram of the cooperation between the first clamp assembly and the second valve provided in the embodiment;

[0039] Fig. 9 yes Figure 1 A schematic diagram of the cooperation between the first clamp assembly and the second valve provided in the embodiment in another perspective;

[0040] Fig.10 yes Figure 1 A schematic diagram of the cooperation between the second clamp assembly and the emergency valve provided in the embodiment.

[0041] Reference numerals:

[0042] 10. swivel table; 110. first mounting surface; 120. second mounting surface; 130. third mounting surface; 140. flange connection plate;

[0043] 20, first fixture assembly; 210, first parallel cylinder; 220, first main slide; 230, first auxiliary slide; 240, first main positioning sleeve; 250, first auxiliary positioning sleeve; 260, second main positioning sleeve; 270, second auxiliary positioning sleeve; 280, first in-position detection sensor; 290, second in-position detection sensor;

[0044] 30, second fixture assembly; 310, second parallel cylinder; 320, second main slide; 330, second auxiliary slide; 340, third main positioning sleeve; 350, third auxiliary positioning sleeve; 360, fourth positioning sleeve; 370, third in-position detection sensor;

[0045] 40, first valve; 410, first main nut; 420, first secondary nut; 430, first recessed portion; 440, second recessed portion;

[0046] 50, second valve; 510, second main nut; 520, second secondary nut;

[0047] 60. Emergency valve; 610. Third main nut; 620. Third secondary nut; 630. Fourth nut. DETAILED DESCRIPTION

[0048] The utility model will be further described below in conjunction with the accompanying drawings.

[0049] As one of the commonly used braking devices, the brake valve is an indispensable equipment for the safe operation of railways. The assembly and testing of brake valves are generally completed manually, especially the test stage cannot be automated. The existing brake valves include three valve bodies: 120H valve, 120H-1, and emergency valve. During the test process, the three valve bodies use three different fixtures respectively. Operators need to frequently manually move and switch fixtures, which is inefficient, time-consuming and labor-intensive, resulting in extended production time and low production efficiency.

[0050] Embodiment 1

[0051] like Figure 1-Figure 4As shown, in order to solve the above technical problems, an embodiment of the utility model provides a valve clamping structure, including a swivel table 10, a first clamp assembly 20 and a second clamp assembly 30; the swivel table 10 includes a first mounting surface 110, a second mounting surface 120 and a third mounting surface 130, and the first mounting surface 110, the second mounting surface 120 and the third mounting surface 130 have an angle therebetween, and the first mounting surface 110 and the second mounting surface 120 have an angle therebetween; the first clamp assembly 20 is arranged on the first mounting surface 110, and the first clamp assembly 20 is used to clamp the first valve 40 of the brake valve and the second valve 50 of the brake valve; the second clamp assembly 30 is arranged on the second mounting surface 120, and the second clamp assembly 30 is used to clamp the emergency valve 60 of the brake valve.

[0052] As can be seen from the above, by setting the first clamp assembly 20 to clamp the first valve 40 and the second valve 50 of the brake valve, and setting the second clamp assembly 30 to clamp the emergency valve 60 of the brake valve, it is possible to clamp three different valves on one clamping structure, and the operator does not need to carry the clamp or switch the clamp, which saves manpower and material resources and improves production efficiency. In addition, by setting the first clamp assembly 20 and the second clamp assembly 30 on the first mounting surface 110 and the second mounting surface 120 of the swivel table 10 respectively, the operator can switch the first clamp assembly 20 and the second clamp assembly 30 by rotating the swivel table 10, which is simple and convenient.

[0053] It should be noted that the first valve 40 of the brake valve is a 120H valve, and the second valve 50 is a 120H-1 valve. The 120H-1 valve is improved on the basis of the 120H valve and adds the function of common braking acceleration. Compared with the 120 valve, the 120H-1 valve is different only in the upper cover, main valve body, sliding valve, control valve and stabilizing spring seat; in addition, the specific structure and working principle of the 120H valve and the 120H-1 valve are all existing technologies and will not be repeated in this application.

[0054] It should also be noted that the specific structure and working principle of the emergency valve 60 are prior art and will not be described in detail in this application.

[0055] It should also be noted that the first valve 40 , the second valve 50 and the emergency valve 60 are all placed on the test bench to wait for being clamped by the first clamping assembly and the second clamping assembly.

[0056] It should also be noted that a flange connection plate 140 is provided on the third mounting surface 130, which is connected to the driving assembly through the flange connection plate 140, and the driving assembly is used to drive the turntable 10 to rotate, so as to realize the switching of the first clamp assembly 20 and the second clamp assembly 30, so that the first clamp assembly 20 and the second clamp assembly 30 are ready to clamp the first valve 40, the second valve 50, and the emergency valve 60. In addition, the driving assembly includes but is not limited to a motor, and the specific structure and working principle of the driving assembly are all prior art, and will not be repeated in this application.

[0057] Embodiment 2

[0058] like Figure 1-Figure 4 As shown, the valve clamping structure includes a swivel table 10, a first clamp assembly 20 and a second clamp assembly 30; the swivel table 10 includes a first mounting surface 110, a second mounting surface 120 and a third mounting surface 130, and the first mounting surface 110, the second mounting surface 120 and the third mounting surface 130 have an angle therebetween, and the first mounting surface 110 and the second mounting surface 120 have an angle therebetween; the first clamp assembly 20 is arranged on the first mounting surface 110, and the first clamp assembly 20 is used to clamp the first valve 40 of the brake valve and the second valve 50 of the brake valve; the second clamp assembly 30 is arranged.

[0059] As can be seen from the above, by setting the first clamp assembly 20 to clamp the first valve 40 and the second valve 50 of the brake valve, and setting the second clamp assembly 30 to clamp the emergency valve 60 of the brake valve, it is possible to clamp three different valves on one clamping structure, and the operator does not need to carry the clamp or switch the clamp, which saves manpower and material resources and improves production efficiency. In addition, by setting the first clamp assembly 20 and the second clamp assembly 30 on the first mounting surface 110 and the second mounting surface 120 of the swivel table 10 respectively, the operator can switch the first clamp assembly 20 and the second clamp assembly 30 by rotating the swivel table 10, which is simple and convenient.

[0060] It should be noted that the first valve 40 of the brake valve is a 120H valve, and the second valve 50 is a 120H-1 valve. The 120H-1 valve is improved on the basis of the 120H valve and adds the function of common braking acceleration. Compared with the 120 valve, the 120H-1 valve is different only in the upper cover, main valve body, sliding valve, control valve and stabilizing spring seat; in addition, the specific structure and working principle of the 120H valve and the 120H-1 valve are all existing technologies and will not be repeated in this application.

[0061] It should also be noted that the specific structure and working principle of the emergency valve 60 are prior art and will not be described in detail in this application.

[0062] It should also be noted that the first valve 40 , the second valve 50 and the emergency valve 60 are all placed on the test bench to wait for being clamped by the first clamping assembly and the second clamping assembly.

[0063] It should also be noted that a flange connection plate 140 is provided on the third mounting surface 130, which is connected to the driving assembly through the flange connection plate 140, and the driving assembly is used to drive the turntable 10 to rotate, so as to realize the switching of the first clamp assembly 20 and the second clamp assembly 30, so that the first clamp assembly 20 and the second clamp assembly 30 are ready to clamp the first valve 40, the second valve 50, and the emergency valve 60. In addition, the driving assembly includes but is not limited to a motor, and the specific structure and working principle of the driving assembly are all prior art, and will not be repeated in this application.

[0064] In some embodiments, the turntable 10 is a right triangular prism turntable 10, the first mounting surface 110, the second mounting surface 120 and the third mounting surface 130 are respectively located on three side surfaces of the right triangular prism turntable 10, and the angle between the first mounting surface 110 and the second mounting surface 120 is 90°.

[0065] It should be noted that the included angle between the first mounting surface 110 and the third mounting surface 130 is 45°, and the included angle between the second mounting surface 120 and the third mounting surface 130 is 45°.

[0066] like Figure 1 , Figure 2 As shown, in some embodiments, the first fixture assembly 20 includes a first parallel cylinder 210, two first main positioning sleeves 240 and a first auxiliary positioning sleeve 250; the first parallel cylinder 210 includes a first main slide 220 and a first auxiliary slide 230 arranged opposite to each other in the first direction of the turntable 10, and the first main slide 220 and the first auxiliary slide 230 can move along the first direction and the movement directions are opposite; the two first main positioning sleeves 240 are arranged on the first main slide 220, and the two first main positioning sleeves 240 are arranged at intervals along the second direction of the turntable 10, and the first main positioning sleeve 240 is used for inserting the nut on one side of the first valve 40; the first auxiliary positioning sleeve 250 is arranged on the first auxiliary slide 230, and the first auxiliary positioning sleeve 250 is used for inserting the nut on the other side of the first valve 40.

[0067] The first parallel cylinder 210 drives the first main slide 220 and the first auxiliary slide 230 to move in opposite directions, so that the distance between the first main slide 220 and the first auxiliary slide 230 is reduced, or the distance between the first main slide 220 and the first auxiliary slide 230 is increased, thereby providing a structural basis for clamping and loosening the first valve 40; when clamping the first valve 40, the first parallel cylinder 210 drives the first main slide 220 and the first auxiliary slide 230 to move toward each other, and the nuts on both sides of the first valve 40 are respectively inserted into the first main positioning sleeve 240 and the first auxiliary positioning sleeve 250, and the end faces of the first main positioning sleeve 240 and the first auxiliary positioning sleeve 250 are respectively abutted against the two sides of the first main valve; when loosening the first valve 40, the first parallel cylinder 210 drives the first main slide 220 and the first auxiliary slide 230 to move away from each other, and the nuts on both sides of the first valve 40 leave the first main positioning sleeve 240 and the first auxiliary positioning sleeve 250 respectively.

[0068] It should be noted that the first clamp assembly 20 also includes a clamping jaw connecting plate, which is connected to the first mounting surface 110 via bolts, and the first parallel cylinder 210 is connected to the first mounting surface 110 including but not limited to being connected via bolts.

[0069] It should also be noted that the first parallel cylinder 210 includes a cylinder and a piston. When compressed air is injected into the cylinder, the piston moves, thereby driving the first main slide 220 and the first auxiliary slide 230 to open or close in parallel. In addition, the specific structure and working principle of the first parallel cylinder 210 are all existing technologies and will not be repeated in this application.

[0070] It should also be noted that the first main positioning sleeve 240 is connected to the first main slide 220 including but not limited to being connected by bolts, and the first auxiliary positioning sleeve 250 is connected to the first auxiliary slide 230 including but not limited to being connected by bolts.

[0071] It should also be noted that if Figure 1 As shown, the first direction is parallel to the Z direction, the second direction is parallel to the X direction, and the third direction is parallel to the Y direction.

[0072] like Figure 1 , Figure 2 As shown, in some embodiments, the first fixture assembly 20 further includes two second main positioning sleeves 260 and a second auxiliary positioning sleeve 270; the two second main positioning sleeves are arranged on the first main slide, and the two second main positioning sleeves are arranged at intervals along the second direction of the rotating table, and the second main positioning sleeves are used for inserting the nut on one side of the second valve 50; the second auxiliary positioning sleeve is arranged on the first auxiliary slide, and the second auxiliary positioning sleeve is used for inserting the nut on the other side of the second valve 50;

[0073] Among them, the two second main positioning sleeves are located on the side of the two first main positioning sleeves away from the first mounting surface, and the two second main positioning sleeves correspond one-to-one to the two first main positioning sleeves, and the second main positioning sleeves are located on the side of the corresponding first main positioning sleeves away from the second mounting surface; the second auxiliary positioning sleeve is located on the side of the first auxiliary positioning sleeve away from the first mounting surface, and the second auxiliary positioning sleeve is located on the side of the first auxiliary positioning sleeve away from the second mounting surface.

[0074] The first parallel cylinder 210 drives the first main slide 220 and the first auxiliary slide 230 to move in opposite directions, so that the distance between the first main slide 220 and the first auxiliary slide 230 is reduced, or the distance between the first main slide 220 and the first auxiliary slide 230 is increased, thereby providing a structural basis for clamping and loosening the second valve 50; when clamping the second valve 50, the first parallel cylinder 210 drives the first main slide 220 and the first auxiliary slide 230 to move toward each other, and the nuts on both sides of the second valve 50 are respectively inserted into the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270, and the end surfaces of the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270 are respectively abutted against the two sides of the second main valve; when loosening the second valve 50, the first parallel cylinder 210 drives the first main slide 220 and the first auxiliary slide 230 to move away from each other, and the nuts on both sides of the second valve 50 leave the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270 respectively.

[0075] In addition, by arranging the second main locating sleeve 260 on the side of the first main locating sleeve 240 away from the first mounting surface 110, and the second main locating sleeve 260 on the side of the first main locating sleeve 240 away from the second mounting surface 120, the second auxiliary locating sleeve 270 is arranged on the side of the first auxiliary locating sleeve 250 away from the first mounting surface 110, and the second auxiliary locating sleeve 270 is arranged on the side of the first auxiliary locating sleeve 250 away from the second mounting surface 120; when the first main locating sleeve 240 and the first auxiliary locating sleeve 250 are matched with the nut on the first valve 40, the second main locating sleeve 240 and the first auxiliary locating sleeve 250 are matched with the nut on the first valve 40. The positioning sleeve 260 and the second auxiliary positioning sleeve 270 are both located in the recessed portion of the first valve 40, thereby avoiding interference between the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270 and the first valve 40 when clamping the first valve 40; when the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270 cooperate with the nut on the second valve 50, the first main positioning sleeve 240 and the first auxiliary positioning sleeve 250 are both located above the second valve 50, thereby avoiding interference between the first main positioning sleeve 240 and the first auxiliary positioning sleeve 250 and the second valve 50 when clamping the second valve 50.

[0076] like Figure 5-Figure 7As shown, the first valve 40 includes a first valve body, two first main nuts 410 and a first secondary nut 420. The first valve body is provided with a first recessed portion 430 and a second recessed portion 440 on both sides thereof. The two first main nuts 410 are located on one side of the first valve body, and the first secondary nut 420 is located on the other side of the first valve body.

[0077] The distance between the two first main nuts 410 and the distance between the first main nut 410 and the first secondary nut 420 determine the relative positions of the two first main positioning sleeves and the first secondary positioning sleeve.

[0078] For example, Figure 1-Figure 4 As shown, the two first main positioning sleeves are the first main positioning sleeve A and the first main positioning sleeve B. The distance L1 between the first main positioning sleeve A and the first main positioning sleeve B in the second direction is 116 mm, the distance L2 between the first auxiliary positioning sleeve and the first main positioning sleeve A in the second direction is 50 mm, and the distance L3 between the first auxiliary positioning sleeve and the first main positioning sleeve A in the third direction is 11 mm.

[0079] like Figure 8 , Fig. 9 As shown, the second valve 50 includes a second valve body, two second main nuts 510 and a second secondary nut 520. The two second main nuts 510 are located on one side of the second valve body, and the second secondary nut 520 is located on the other side of the first valve body. The two second main locating sleeves are respectively inserted into the two second main nuts 510, and the second secondary locating sleeve is inserted into the second secondary nut 520. The distance between the two second main nuts 510 and the distance between the second main nut 510 and the second secondary nut 520 determine the relative positions between the two second main locating sleeves and the second secondary locating sleeves.

[0080] For example, Figure 1-Figure 4 As shown, the two second main positioning sleeves are the second main positioning sleeve A and the second main positioning sleeve B, the distance P1 between the second main positioning sleeve A and the second main positioning sleeve B in the second direction is 114 mm, the distance P2 between the second main positioning sleeve A and the first main positioning sleeve A in the second direction is 54 mm, the distance P3 between the second auxiliary positioning sleeve and the second main positioning sleeve A in the second direction is 11 mm, and the distance P4 between the second auxiliary positioning sleeve and the second main positioning sleeve A in the third direction is 12 mm.

[0081] In some embodiments, the first main positioning sleeve 240, the first auxiliary positioning sleeve 250, the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270 all extend along the first direction, the length of the first main positioning sleeve 240 in the first direction is greater than the length of the second main positioning sleeve 260 in the first direction, and the length of the first auxiliary positioning sleeve 250 in the first direction is less than the length of the second auxiliary positioning sleeve 270 in the first direction.

[0082] By limiting the lengths of the first main positioning sleeve 240 , the second main positioning sleeve 260 , the first auxiliary positioning sleeve 250 , and the second auxiliary positioning sleeve 270 in the first direction, it is possible to ensure that the first valve 40 and the second valve 50 are clamped and to avoid interference.

[0083] It should be noted that the lengths of the first main positioning sleeve 240 and the first auxiliary positioning sleeve 250 in the first direction are determined according to the external shape of the first valve 40. For example, the length of the first main positioning sleeve 240 in the first direction is 43 mm, and the length of the first auxiliary positioning sleeve 250 in the first direction is 19 mm.

[0084] The lengths of the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270 in the first direction are determined according to the external shape of the second valve 50. For example, the length of the second main positioning sleeve 260 in the first direction is 19 mm, and the length of the second auxiliary positioning sleeve 270 in the first direction is 29 mm.

[0085] In some embodiments, the first main positioning sleeve 240 and the first auxiliary positioning sleeve 250 are respectively provided with first positioning holes for inserting the nut of the first valve 40; the second main positioning sleeve 260 and the second auxiliary positioning sleeve 270 are respectively provided with second positioning holes for inserting the nut of the second valve 50.

[0086] It should be noted that the first positioning hole matches the shape of the nut of the first valve 40 , and the second positioning hole matches the shape of the second valve 50 .

[0087] like Figure 1 , Figure 2 As shown, in some embodiments, the first clamp assembly 20 also includes a first in-situ detection sensor 280 and a second in-situ detection sensor 290; the first in-situ detection sensor 280 is arranged on the first main slide 220, the first in-situ detection sensor 280 is located between the two first main positioning sleeves 240, and the first in-situ detection sensor 280 is located on the side of the first main positioning sleeve 240 close to the first mounting surface 110, and the first in-situ detection sensor 280 is used to detect the position of the first valve 40 to determine whether the first valve 40 is clamped in place; the second in-situ detection sensor 290 is arranged on the first main slide 220, the second in-situ detection sensor 290 is located between the two second main positioning sleeves 260, and the second in-situ detection sensor 290 is located on the side of the second main positioning sleeve 260 close to the first mounting surface 110, and the second in-situ detection sensor 290 is used to detect the position of the second valve 50 to determine whether the second valve 50 is clamped in place.

[0088] The first in-position detection sensor 280 is provided to determine whether the first valve 40 is clamped in place when the first clamp assembly 20 is clamped, and the second in-position detection sensor 290 is provided to determine whether the second valve 50 is clamped in place when the first clamp assembly is clamped.

[0089] It should be noted that the first in-place detection sensor 280 and the second in-place detection sensor 290 include but are not limited to position sensors, for example, one of an electromagnetic position sensor and a photoelectric position sensor; in addition, the specific structure and working principle of the first in-place detection sensor 280 and the second in-place detection sensor 290 are all existing technologies and will not be repeated in this application.

[0090] like Figure 3 As shown in the figure, in some embodiments, the second fixture assembly includes a second parallel cylinder 310, two second main positioning sleeves 260, two second auxiliary positioning sleeves 270 and a fourth positioning sleeve 360; the second parallel cylinder 310 includes a second main slide 320 and a second auxiliary slide 330 arranged opposite to each other in the first direction of the turntable 10, and the second main slide 320 and the second auxiliary slide 330 can move along the first direction and in opposite directions; two third main positioning sleeves 340 are arranged on the second main slide 320, and the two third main positioning sleeves 340 are arranged on the second main slide 320. The sleeves 340 are arranged at intervals along the third direction of the swivel table 10, and the third main positioning sleeve 340 is used for inserting the nut on one side of the emergency valve 60; the two third auxiliary positioning sleeves 350 are arranged on the second auxiliary slide 330, and the third auxiliary positioning sleeve 350 is used for inserting the nut on the other side of the emergency valve 60; the fourth positioning sleeve 360 ​​is arranged on the second auxiliary slide 330, and the fourth positioning sleeve 360 ​​is located between the two third auxiliary positioning sleeves 350, and the fourth positioning sleeve 360 ​​is located on the side of the third auxiliary positioning sleeve 350 close to the second mounting surface 120.

[0091] The second parallel cylinder 310 drives the second main slide 320 and the second auxiliary slide 330 to move in opposite directions, so that the distance between the second main slide 320 and the second auxiliary slide 330 is reduced, or the distance between the second main slide 320 and the second auxiliary slide 330 is increased, thereby providing a structural basis for clamping and releasing the emergency valve 60; when clamping the emergency valve 60, the second parallel cylinder 310 drives the second main slide 320 and the second auxiliary slide 330 to move toward each other. The nut on one side of the emergency valve 60 is inserted into the third main positioning sleeve 340, and the nut on the other side is inserted into the third auxiliary positioning sleeve 350 and the fourth positioning sleeve 360, and the end surface of the third main positioning sleeve 340 abuts against one side of the emergency valve 60, and the end surfaces of the third auxiliary positioning sleeve 350 and the fourth positioning sleeve 360 ​​abut against the other side of the emergency valve 60; when the emergency valve 60 is released, the second parallel cylinder 310 drives the second main slide 320 and the second auxiliary slide 330 to move oppositely.

[0092] It should also be noted that if Fig.10 As shown, the emergency valve 60 includes two third main nuts 610, two third secondary nuts 620 and a fourth nut 630, the two third main nuts 610 are arranged on one side of the emergency valve 60, and the two third secondary nuts 620 and the fourth nut 630 are arranged on the other side of the emergency valve 60;

[0093] The distance between the two third main nuts 610, the distance between the two third secondary nuts 620, and the distance between the third secondary nut 620 and the fourth nut 630 determine the relative positions of the two third main positioning sleeves, the two third secondary positioning sleeves, and the fourth positioning sleeve.

[0094] For example, Figure 3 , Figure 4 As shown, the distance L4 between the two third main positioning sleeves in the third direction is 82 mm, and the distance L5 between the two third auxiliary positioning sleeves in the third direction is 90 mm; the distance between the third auxiliary positioning sleeve A and the third main positioning sleeve A in the second direction is 38 mm;

[0095] A distance L6 between the fourth nut 630 and the third sub-nut 620A in the second direction is 97 mm, and a distance L7 between the fourth nut 630 and the third sub-nut 620A in the third direction is 45 mm.

[0096] like Figure 3 , Figure 4 As shown, in some embodiments, the second clamp assembly also includes a third in-situ detection sensor 370, which is arranged on the second main slide 320. The third in-situ detection sensor 370 is located on the side of the third main positioning sleeve 340 close to the second mounting surface 120. The third in-situ detection sensor 370 is used to detect the position of the emergency valve 60 to determine whether the emergency valve 60 is clamped in place.

[0097] The third in-position detection sensor 370 is provided to determine whether the emergency valve 60 is clamped in place when the second clamp assembly 30 is clamped.

[0098] It should be noted that the third in-situ detection sensor 370 includes but is not limited to a position sensor, for example, an electromagnetic position sensor or a photoelectric position sensor; in addition, the specific structure and working principle of the position sensor are all prior art and will not be elaborated in this application.

[0099] Embodiment 3

[0100] The embodiment of the utility model further provides a test device, comprising the valve clamping structure of any embodiment of the utility model, thereby having all the technical effects brought by the technical solutions of the above embodiments.

[0101] It should be noted that the test device also includes a lifting assembly, and the valve clamping structure is arranged on the lifting assembly. The lifting assembly can drive the valve clamping structure to move in a first direction, so that the valve clamping structure first approaches the brake valve and then clamps. The specific structure and working principle of the lifting assembly are both prior art. For example, the lifting assembly is an electric push rod, a cylinder, and a screw nut lifter, which will not be described in detail in this application.

[0102] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A valve clamping structure, characterized in that: include: The swivel table comprises a first mounting surface, a second mounting surface and a third mounting surface, wherein the first mounting surface and the second mounting surface respectively have an angle with the third mounting surface, and the first mounting surface and the second mounting surface have an angle with each other; A first clamp assembly is arranged on the first mounting surface, and the first clamp assembly is used to clamp a first valve of the brake valve and a second valve of the brake valve; The second clamp assembly is arranged on the second mounting surface, and the second clamp assembly is used for clamping the emergency valve of the brake valve.

2. The valve clamping structure according to claim 1, characterized in that: The turntable is a straight triangular prism turntable, the first mounting surface, the second mounting surface and the third mounting surface are respectively located on three side surfaces of the straight triangular prism turntable, and the angle between the first mounting surface and the second mounting surface is 90°.

3. The valve clamping structure according to claim 2, characterized in that: The first clamp assembly comprises: The first parallel cylinder comprises a first main slide and a first auxiliary slide which are arranged opposite to each other in the first direction of the rotary table, wherein the first main slide and the first auxiliary slide can move along the first direction and move in opposite directions; Two first main positioning sleeves are arranged on the first main slide, the two first main positioning sleeves are arranged at intervals along the second direction of the rotary table, and the first main positioning sleeves are used for inserting a nut on one side of the first valve; The first pair of positioning sleeves is arranged on the first pair of slides, and the first pair of positioning sleeves is used for inserting the nut on the other side of the first valve.

4. The valve clamping structure according to claim 3, characterized in that: The first clamp assembly also includes: Two second main positioning sleeves are arranged on the first main slide, the two second main positioning sleeves are arranged at intervals along the second direction of the rotary table, and the second main positioning sleeves are used for inserting the nut on one side of the second valve; A second pair of positioning sleeves, arranged on the first pair of slides, the second pair of positioning sleeves being used for inserting the nut on the other side of the second valve; Among them, the two second main positioning sleeves are located on the side of the two first main positioning sleeves away from the first mounting surface, and the two second main positioning sleeves correspond one-to-one to the two first main positioning sleeves, and the second main positioning sleeves are located on the side of the corresponding first main positioning sleeves away from the second mounting surface; the second secondary positioning sleeves are located on the side of the first secondary positioning sleeve away from the first mounting surface, and the second secondary positioning sleeves are located on the side of the first secondary positioning sleeve away from the second mounting surface.

5. The valve clamping structure according to claim 4, characterized in that: The first main positioning sleeve, the first auxiliary positioning sleeve, the second main positioning sleeve and the second auxiliary positioning sleeve all extend along the first direction, the length of the first main positioning sleeve in the first direction is greater than the length of the second main positioning sleeve in the first direction, and the length of the first auxiliary positioning sleeve in the first direction is less than the length of the second auxiliary positioning sleeve in the first direction.

6. The valve clamping structure according to any one of claims 4-5, characterized in that: The first main positioning sleeve and the first auxiliary positioning sleeve are respectively provided with a first positioning hole for inserting the nut of the first valve; the second main positioning sleeve and the second auxiliary positioning sleeve are respectively provided with a second positioning hole for inserting the nut of the second valve.

7. The valve clamping structure according to any one of claims 4 to 5, characterized in that: The first clamp assembly also includes: a first in-position detection sensor, which is disposed on the first main slide, the first in-position detection sensor being located between the two first main positioning sleeves, and the first in-position detection sensor being located on a side of the first main positioning sleeve close to the first mounting surface, and the first in-position detection sensor being used to detect a position of the first valve to determine whether the first valve is clamped in place; The second in-position detection sensor is arranged on the first main slide, the second in-position detection sensor is located between the two second main positioning sleeves, and the second in-position detection sensor is located on the side of the second main positioning sleeve close to the first mounting surface, and the second in-position detection sensor is used to detect the position of the second valve to determine that the second valve is clamped in place.

8. The valve clamping structure according to claim 2, characterized in that: The second clamp assembly comprises: The second parallel cylinder comprises a second main slide and a second auxiliary slide which are arranged opposite to each other in the first direction of the rotary table, and the second main slide and the second auxiliary slide can move along the first direction and move in opposite directions; Two third main positioning sleeves are arranged on the second main slide, and the two third main positioning sleeves are arranged at intervals along the third direction of the rotary table, and the third main positioning sleeves are used for inserting the nut on one side of the emergency valve; Two third pair of positioning sleeves are arranged on the second pair of slides, and the third pair of positioning sleeves are used for inserting the nut on the other side of the emergency valve; A fourth positioning sleeve is arranged on the second auxiliary slide, the fourth positioning sleeve is located between the two third auxiliary positioning sleeves, and the fourth positioning sleeve is located on a side of the third auxiliary positioning sleeve close to the second mounting surface.

9. The valve clamping structure according to claim 8, characterized in that: The second clamp assembly also includes a third in-situ detection sensor, which is arranged on the second main slide. The third in-situ detection sensor is located on the side of the third main positioning sleeve close to the second mounting surface. The third in-situ detection sensor is used to detect the position of the emergency valve to determine that the emergency valve is clamped in place.

10. A test device, characterized in that: It comprises the valve clamping structure as described in any one of claims 1-9.

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