Positioning device and detection device

Abstract

The utility model discloses a positioning device and a detection device. The positioning device comprises a base, a fixing assembly and a positioning assembly. The fixing assembly is rotationally connected with the base; the positioning assembly comprises an upper positioning piece and a lower positioning piece, the lower positioning piece is arranged on the base, the upper positioning piece is provided with a first detection channel, the lower positioning piece is provided with a second detection channel, and the upper positioning piece and the lower positioning piece are used for clamping the explosion-proof valve at the joint of the first detection channel and the second detection channel; therefore, the upper positioning piece and the lower positioning piece can limit different positions of the anti-explosion valve respectively, positioning of the anti-explosion valve is achieved, the position accuracy of the anti-explosion valve is guaranteed, the situation that the anti-explosion valve cannot be positioned is avoided, and the positioning effect of the positioning device on the anti-explosion valve is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection devices, in particular to a positioning device and a detection device. BACKGROUND

[0002] With the development of science and technology, the explosion-proof valve uses the valve flap to seal the gas or liquid in the container, prevents the gas or liquid in the container from leaking outwards, in order to understand the performance of the explosion-proof valve, the explosion-proof valve will be tested. However, the existing detection device cannot position the explosion-proof valve, and the explosion-proof valve is easy to deviate during the detection process, resulting in poor positioning effect of the existing detection device. SUMMARY

[0003] One object of the present application is to provide a positioning device and a detection device, which aims to solve the technical problem that the explosion-proof valve is easy to deviate during the detection process, resulting in poor positioning effect of the existing detection device.

[0004] To achieve the above-mentioned purpose, one scheme provided by the present application is: a positioning device for explosion-proof valve air tightness detection, the positioning device comprises:

[0005] a base;

[0006] a fixing assembly, which is rotationally connected with the base; and

[0007] a positioning assembly, which comprises an upper positioning member and a lower positioning member, the lower positioning member is arranged on the base, the upper positioning member is provided with a first detection channel, the lower positioning member is provided with a second detection channel, the upper positioning member and the lower positioning member are used for clamping the explosion-proof valve at the connection between the first detection channel and the second detection channel, the fixing assembly is used for pressing one end of the upper positioning member away from the lower positioning member, one end of the first detection channel away from the second detection channel is provided with a first air vent, and one end of the second detection channel away from the first detection channel is provided with a second air vent.

[0008] Optionally, the base comprises a main body seat and an auxiliary seat, the main body seat is provided with an assembly groove and a first through hole communicated with the assembly groove, the auxiliary seat is provided with a second through hole, the auxiliary seat is installed in the assembly groove and is detachably connected with the main body seat, the lower positioning member is arranged on the auxiliary seat and sequentially penetrates the second through hole and the first through hole.

[0009] Optionally, one side of the upper positioning member facing the base is provided with a step structure, the auxiliary seat protrudes from the assembly groove, the step structure abuts against one side of the auxiliary seat facing the upper positioning member and surrounds the outer circumferential surface of the auxiliary seat.

[0010] Optionally, the diameter of the second via is smaller than the diameter of the first via, and the auxiliary seat covers part of the first via.

[0011] Optionally, the diameter of at least part of the second detection channel gradually decreases in the direction away from the upper positioning member.

[0012] Optionally, the second detection channel comprises a first sub-channel, a second sub-channel and a third sub-channel connected in sequence, the first sub-channel is connected with the first detection channel, the third sub-channel is provided with the second air vent, the diameter of the first sub-channel gradually decreases in the direction away from the upper positioning member, the diameter of the second sub-channel is constant, and the diameter of the third sub-channel gradually decreases.

[0013] Optionally, the positioning device further comprises a first sealing ring and a second sealing ring, the base is provided with a first positioning groove and a second positioning groove, the first sealing ring is assembled in the first positioning groove, the second sealing ring is assembled in the second positioning groove, the first sealing ring is clamped between the base and the upper positioning member, and the second sealing ring is clamped between the base and the lower positioning member.

[0014] Optionally, the positioning device further comprises a limiting ring and a fastener, the fastener passes through the limiting ring and the base to be connected, and the limiting ring is annularly arranged on the outer circumferential surface of the upper positioning member.

[0015] Optionally, the fixing assembly comprises a fixing seat, a first connecting rod, a second connecting rod, a third connecting rod and a fixing hammer, the fixing seat is connected with the base, the first connecting rod is rotationally connected with the fixing seat, the second connecting rod is rotationally connected with the fixing seat, the third connecting rod is rotationally connected with the first connecting rod and the second connecting rod respectively, and the fixing hammer is slidingly connected with the second connecting rod.

[0016] To achieve the above-mentioned purpose, a scheme provided by the present application is: a detection device, the detection device comprises: a ventilator, a detection machine and the positioning device, the ventilator is communicated with the first air vent, the detection machine is communicated with the second air vent, and the positioning device is used for fixing the explosion-proof valve.

[0017] The present application has the following beneficial effects:

[0018] The utility model provides a positioning device and detection device, fixed assembly and base rotation connection, positioning assembly includes upper locating piece and lower locating piece, lower locating piece sets up on the base, upper locating piece has first detection channel, lower locating piece has second detection channel, upper locating piece and lower locating piece are used for clamping explosion -proof valve at the junction of first detection channel and second detection channel, so as to upper locating piece and lower locating piece limit the different position of explosion -proof valve respectively, realize the positioning of explosion -proof valve, guarantee the position accuracy of explosion -proof valve, avoid the deviation of explosion -proof valve in the detection process, guarantee the positioning effect of positioning device to explosion -proof valve. Fixed assembly is used for pressing the one end of upper locating piece away from lower locating piece, the one end of first detection channel away from second detection channel has first air vent, and the one end of second detection channel away from first detection channel has second air vent, so as to pressurize upper locating piece through fixed assembly, has improved the clamping effect of upper locating piece and lower locating piece relative to explosion -proof valve, has further improved the detection accuracy of positioning device to explosion -proof valve. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0020] Figure 1 It is the assembly structure schematic diagram of the detection device provided by the embodiment of the present application.

[0021] Figure 2 It is the cross section structure schematic diagram of the detection device provided by the embodiment of the present application.

[0022] Figure 3 The partial enlarged view of A in the figure is shown. Figure 2

[0023] Explanation of reference numerals:

[0024] 100, positioning device;

[0025] 10, base; 10a, first positioning groove; 10b, second positioning groove; 11, main seat; 11a, assembly groove; 11b, first via; 12, auxiliary seat; 12a, second via;

[0026] 20, fixed assembly; 21, fixed seat; 22, first connecting rod; 23, second connecting rod; 24, third connecting rod; 25, fixed hammer;

[0027] ​30, positioning assembly; 31, upper positioning member; 31a, first detection channel; 31b, first air vent; 311, step structure; 32, lower positioning member; 32a, second detection channel; 321a, first sub-channel; 322a, second sub-channel; 323a, third sub-channel; 32b, second air vent;

[0028] 40, first sealing ring;

[0029] 50, second sealing ring;

[0030] 60, limiting ring;

[0031] 70, fastener. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Please refer to the accompanying drawings Figures 1-3 The present application provides a positioning device 100 for positioning an explosion-proof valve.

[0034] Please refer to the accompanying drawings Figures 1-3 In the embodiments of the present application, the positioning device 100 includes a base 10, a fixing assembly 20 and a positioning assembly 30; the fixing assembly 20 is rotationally connected with the base 10; the positioning assembly 30 includes an upper positioning member 31 and a lower positioning member 32. The lower positioning member 32 is arranged on the base 10, and the upper positioning member 31 is provided with a first detection channel 31a, and the lower positioning member 32 is provided with a second detection channel 32a. The upper positioning member 31 and the lower positioning member 32 are used for clamping the explosion-proof valve at the connection between the first detection channel 31a and the second detection channel 32a. So as to restrict different positions of the explosion-proof valve by the upper positioning member 31 and the lower positioning member 32 respectively, so as to realize the positioning of the explosion-proof valve and ensure the position accuracy of the explosion-proof valve. Avoiding the explosion-proof valve from deviating during detection, ensuring the positioning effect of the positioning device 100 on the explosion-proof valve. The fixing assembly 20 is used for pressing the end of the upper positioning member 31 away from the lower positioning member 32, the end of the first detection channel 31a away from the second detection channel 32a is provided with a first air vent 31b, and the end of the second detection channel 32a away from the first detection channel 31a is provided with a second air vent 32b. So as to press the upper positioning member 31 by the fixing assembly 20, improve the clamping effect of the upper positioning member 31 and the lower positioning member 32 relative to the explosion-proof valve, and further improve the detection accuracy of the positioning device 100 on the explosion-proof valve.

[0035] Please refer to the accompanying drawingsFigure 1 In the embodiment of the present application, the base 10 is used as a supporting component of the positioning device 100, and the base 10 is used to support the fixing assembly 20 and the positioning assembly 30.

[0036] Please refer to the accompanying drawings Figure 1 In the embodiment of the present application, the fixing assembly 20 is arranged on the upper side of the base 10, and the fixing assembly 20 is rotationally connected with the base 10, so as to facilitate the adjustment of the position of the fixing assembly 20 relative to the base 10.

[0037] Please refer to the accompanying drawings Figures 1-3 In the embodiment of the present application, the positioning assembly 30 is arranged on the left side of the fixing assembly 20, and the positioning assembly 30 comprises an upper positioning member 31 and a lower positioning member 32. The lower positioning member 32 is arranged on the base 10, and the upper positioning member 31 is provided with a first detection channel 31a, and the lower positioning member 32 is provided with a second detection channel 32a. The upper positioning member 31 and the lower positioning member 32 are used to clamp the explosion-proof valve at the connection between the first detection channel 31a and the second detection channel 32a, so as to limit the different positions of the explosion-proof valve by the upper positioning member 31 and the lower positioning member 32 respectively, to realize the positioning of the explosion-proof valve and ensure the position accuracy of the explosion-proof valve. The deviation of the explosion-proof valve during the detection process is avoided, and the positioning effect of the positioning device 100 on the explosion-proof valve is ensured. The fixing assembly 20 is used to press the end of the upper positioning member 31 away from the lower positioning member 32, the end of the first detection channel 31a away from the second detection channel 32a is provided with a first air vent 31b, and the end of the second detection channel 32a away from the first detection channel 31a is provided with a second air vent 32b. So as to press the upper positioning member 31 by the fixing assembly 20, improve the clamping effect of the upper positioning member 31 and the lower positioning member 32 relative to the explosion-proof valve, and further improve the detection accuracy of the positioning device 100 on the explosion-proof valve.

[0038] Please refer to the accompanying drawings Figures 2-3 At this time, the gas flows into the first detection channel 31a through the first air vent 31b, and the gas in the first detection channel 31a flows towards the explosion-proof valve. When the gas passing through the explosion-proof valve is discharged to the external environment through the second detection channel 32a and the second air vent 32b, it is determined that the explosion-proof valve leaks. When the gas passing through the explosion-proof valve cannot flow into the second detection channel 32a, it is determined that the explosion-proof valve does not leak.

[0039] Please refer to the accompanying drawings Figures 2-3The base 10 comprises a main seat 11 and an auxiliary seat 12. The main seat 11 is provided with an assembly groove 11a and a first through hole 11b communicating with the assembly groove 11a. The assembly groove 11a serves as an internal space of the main seat 11. The assembly groove 11a is recessed from top to bottom of the main seat 11, and the groove opening of the assembly groove 11a faces upward. The auxiliary seat 12 is provided with a second through hole 12a. The outer contour of the auxiliary seat 12 is matched with the inner contour of the assembly groove 11a. The auxiliary seat 12 is detachably connected with the main seat 11 by being installed in the assembly groove 11a. Thus, the auxiliary seat 12 can be connected with or separated from the main seat 11 through the assembly groove 11a, thereby improving the convenience of replacing the auxiliary seat 12. A lower positioning member 32 is arranged on the auxiliary seat 12 and sequentially penetrates the second through hole 12a and the first through hole 11b. Thus, the lower positioning member 32 can be replaced along with the replacement of the auxiliary seat 12, and different lower positioning members 32 can be replaced to detect explosion-proof valves of different sizes.

[0040] Please refer to the accompanying drawings Figures 2-3 The upper positioning member 31 is provided with a stepped structure 311 on the side facing the base 10. The auxiliary seat 12 protrudes from the assembly groove 11a. The stepped structure 311 abuts against the side of the auxiliary seat 12 facing the upper positioning member 31 and surrounds the outer circumferential surface of the auxiliary seat 12. Thus, the stepped structure 311 and the main seat 11 sandwich the auxiliary seat 12, so that the upper positioning member 31 can limit the position of the auxiliary seat 12 through the stepped structure 311, thereby fixing the auxiliary seat 12 and ensuring the position accuracy of the auxiliary seat 12.

[0041] Please refer to the accompanying drawings Figures 2-3 The diameter of the second through hole 12a is smaller than that of the first through hole 11b. Thus, the lower positioning member 32 sequentially penetrates the second through hole 12a and the first through hole 11b from top to bottom, so that the upper end of the second through hole 12a supports the lower positioning member 32. The auxiliary seat 12 covers part of the first through hole 11b. Thus, the uncovered first through hole 11b and the second through hole 12a form a detection mechanism groove. The detection mechanism is clamped in the detection mechanism groove, thereby facilitating the positioning of the detection mechanism.

[0042] Please refer to the accompanying drawings Figures 2-3 In the direction away from the upper positioning member 31, the diameter of at least part of the second detection channel 32a gradually decreases. Thus, the flow velocity of the air flow through the second detection channel 32a gradually increases, thereby increasing the flow velocity of the air flow toward the detection mechanism and improving the detection efficiency.

[0043] Please refer to the accompanying drawings Figures 2-3The second detection channel 32a comprises a first sub-channel 321a, a second sub-channel 322a and a third sub-channel 323a connected in sequence, the first sub-channel 321a is connected with the first detection channel 31a, and the third sub-channel 323a is provided with a second air vent 32b, so that the airflow of the first detection channel 31a flows to the second air vent 32b through the first sub-channel 321a, the second sub-channel 322a and the third sub-channel 323a in sequence, and in the direction away from the upper positioning member 31, the diameter of the first sub-channel 321a gradually decreases, the diameter of the second sub-channel 322a is constant, and the diameter of the third sub-channel 323a gradually decreases, so as to realize the stepwise increase of the airflow speed.

[0044] Please refer to the accompanying drawings Figures 2-3 The positioning device 100 further comprises a first sealing ring 40 and a second sealing ring 50, and the base 10 is provided with a first positioning groove 10a and a second positioning groove 10b. The first sealing ring 40 is assembled in the first positioning groove 10a, so as to ensure the position accuracy of the first sealing ring 40 relative to the base 10. The second sealing ring 50 is assembled in the second positioning groove 10b, so as to ensure the position accuracy of the second sealing ring 50 relative to the base 10. The first sealing ring 40 is clamped between the base 10 and the upper positioning member 31, so as to ensure the sealing effect of the connection between the base 10 and the upper positioning member 31, and avoid the airflow flowing to the external environment through the connection between the base 10 and the upper positioning member 31. The second sealing ring 50 is clamped between the base 10 and the lower positioning member 32, so as to ensure the sealing effect of the connection between the base 10 and the lower positioning member 32, and avoid the airflow flowing to the external environment through the connection between the base 10 and the lower positioning member 32.

[0045] Please refer to the accompanying drawings Figure 1 The positioning device 100 further comprises a limiting ring 60 and a fastener 70, the fastener 70 passes through the limiting ring 60 and the base 10 to be connected, and the limiting ring 60 is annularly arranged on the outer circumferential surface of the upper positioning member 31. So as to fix the limiting ring 60 on the outer circumferential surface of the upper positioning member 31 through the fastener 70, so as to limit the outer circumferential surface of the upper positioning member 31 by the limiting ring 60. Prevent the upper positioning member 31 from deforming under the pressure of the fixing assembly 20.

[0046] Please refer to the accompanying drawings Figure 1The fixing assembly 20 comprises a fixing base 21, a first connecting rod 22, a second connecting rod 23, a third connecting rod 24 and a fixing hammer 25. The fixing base 21 is arranged on the upper side of the base 10 and is connected with the base 10 so as to be fixed on the upper side of the base 10. The first connecting rod 22 is rotationally connected with the fixing base 21 so as to adjust the position of the first connecting rod 22 relative to the fixing base 21. The second connecting rod 23 is rotationally connected with the fixing base 21 so as to adjust the position of the second connecting rod 23 relative to the fixing base 21. The third connecting rod 24 is rotationally connected with the first connecting rod 22 and the second connecting rod 23 respectively so that the first connecting rod 22 drives the second connecting rod 23 to rotate through the third connecting rod 24. The fixing hammer 25 is slidingly connected with the second connecting rod 23 so as to adjust the position of the fixing hammer 25 relative to the second connecting rod 23, thereby ensuring that the fixing hammer 25 is arranged in the center relative to the upper positioning member 31 and the fixing hammer 25 applies pressure to the upper positioning member 31 along with the rotation of the second connecting rod 23.

[0047] In another embodiment, a detection device comprises a ventilator, a detection machine and a positioning device 100. The ventilator is communicated with the first ventilation port 31b so that the airflow output by the ventilator flows to the first detection channel 31a through the first ventilation port 31b. The detection machine is communicated with the second ventilation port 32b so as to detect whether there is airflow in the second ventilation port 32b, thereby confirming whether the explosion-proof valve leaks. The positioning device 100 is used for fixing the explosion-proof valve, thereby ensuring the position accuracy of the explosion-proof valve and improving the detection accuracy of the detection device on the explosion-proof valve.

[0048] The present application has the following advantages:

[0049] The positioning device 100 and the detection device are provided. The fixing assembly 20 is rotationally connected with the base 10. The positioning assembly 30 comprises an upper positioning member 31 and a lower positioning member 32. The lower positioning member 32 is arranged on the base 10. The upper positioning member 31 is provided with a first detection channel 31a. The lower positioning member 32 is provided with a second detection channel 32a. The upper positioning member 31 and the lower positioning member 32 are used for clamping the explosion-proof valve at the connection between the first detection channel 31a and the second detection channel 32a, so as to limit different positions of the explosion-proof valve by the upper positioning member 31 and the lower positioning member 32 respectively, thereby realizing the positioning of the explosion-proof valve, ensuring the position accuracy of the explosion-proof valve, avoiding the deviation of the explosion-proof valve in the detection process and ensuring the positioning effect of the positioning device 100 on the explosion-proof valve. The fixing assembly 20 is used for pressing the end of the upper positioning member 31 away from the lower positioning member 32. The end of the first detection channel 31a away from the second detection channel 32a is provided with a first ventilation port 31b. The end of the second detection channel 32a away from the first detection channel 31a is provided with a second ventilation port 32b. The upper positioning member 31 is pressed by the fixing assembly 20, thereby improving the clamping effect of the upper positioning member 31 and the lower positioning member 32 relative to the explosion-proof valve and further improving the detection accuracy of the positioning device 100 on the explosion-proof valve.

[0050] It should be noted that all directional indications, such as upper, lower, left, right, front, rear, etc., are merely used for convenience of description and are not intended to limit the application to a particular orientation.

[0051] It should also be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present.

[0052] In addition, the terms "first", "second", and the like, do not denote any quantity or order but are used for the purpose of nomenclature only. The terms "comprise", "include", "have" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Further, unless expressly stated to the contrary, the term "or" refers to an inclusive "or" and not to an exclusive "or". That is, unless specifically stated to the contrary, a combination of elements or items listed with "or" indicates that a selection of one or more of the elements or items can be employed. In addition, use of "and" is generally intended to represent a conjunctive term unless specifically stated to the contrary.

[0053] The above description is merely illustrative of the application and no limitation of the scope of the application is thereby intended. Accordingly, the scope of the application is set only by the appended claims.

Claims

1. A positioning device, characterized in that, The positioning device includes: Base; A fixing component, rotatably connected to the base; and The positioning assembly includes an upper positioning member and a lower positioning member. The lower positioning member is disposed on the base. The upper positioning member has a first detection channel, and the lower positioning member has a second detection channel. The upper and lower positioning members are used to clamp an explosion-proof valve at the connection between the first and second detection channels. The fixing assembly is used to press down on the end of the upper positioning member away from the lower positioning member. The end of the first detection channel away from the second detection channel has a first vent, and the end of the second detection channel away from the first detection channel has a second vent.

2. The positioning device according to claim 1, characterized in that, The base includes a main body and an auxiliary body. The main body has an assembly groove and a first through hole communicating with the assembly groove. The auxiliary body has a second through hole. The auxiliary body is installed in the assembly groove and is detachably connected to the main body. The lower positioning member is disposed on the auxiliary body and passes through the second through hole and the first through hole in sequence.

3. The positioning device according to claim 2, characterized in that, The upper positioning member has a stepped structure on the side facing the base, the auxiliary seat protrudes from the assembly groove, the stepped structure abuts against the side of the auxiliary seat facing the upper positioning member, and surrounds the outer peripheral surface of the auxiliary seat.

4. The positioning device according to claim 2, characterized in that, The diameter of the second through hole is smaller than the diameter of the first through hole, and the auxiliary seat covers part of the first through hole.

5. The positioning device according to any one of claims 1 to 4, characterized in that, In the direction away from the upper positioning member, the diameter of at least a portion of the second detection channel gradually decreases.

6. The positioning device according to claim 5, characterized in that, The second detection channel includes a first sub-channel, a second sub-channel, and a third sub-channel connected in sequence. The first sub-channel is connected to the first detection channel. The third sub-channel is provided with a second vent. In the direction away from the upper positioning member, the diameter of the first sub-channel gradually decreases, the diameter of the second sub-channel remains unchanged, and the diameter of the third sub-channel gradually decreases.

7. The positioning device according to any one of claims 1 to 4, characterized in that, The positioning device further includes a first sealing ring and a second sealing ring. The base has a first positioning groove and a second positioning groove. The first sealing ring is assembled in the first positioning groove, and the second sealing ring is assembled in the second positioning groove. The first sealing ring is sandwiched between the base and the upper positioning member, and the second sealing ring is sandwiched between the base and the lower positioning member.

8. The positioning device according to any one of claims 1 to 4, characterized in that, The positioning device further includes a limiting ring and a fastener. The fastener passes through the limiting ring and connects to the base. The limiting ring is arranged around the outer peripheral surface of the upper positioning member.

9. The positioning device according to any one of claims 1 to 4, characterized in that, The fixing assembly includes a fixing seat, a first connecting rod, a second connecting rod, a third connecting rod, and a fixing hammer. The fixing seat is connected to the base, the first connecting rod is rotatably connected to the fixing seat, the second connecting rod is rotatably connected to the fixing seat, the third connecting rod is rotatably connected to both the first connecting rod and the second connecting rod, and the fixing hammer is slidably connected to the second connecting rod.

10. A detection device, characterized in that, The detection device includes: a ventilator, a detection machine, and a positioning device as described in any one of claims 1 to 9, wherein the ventilator is connected to the first vent, the detection machine is connected to the second vent, and the positioning device is used to fix the explosion-proof valve.

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