Detection device
By designing a detection device that includes a frame, drive unit, sealing cover, abutment ring, and elastic element, the problem of damage caused by misalignment error between the valve body and the detection device is solved, achieving high-precision and low-damage valve body sealing detection.
Patent Information
- Application Number
- CN202423127955.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In the prior art, the misalignment error between the valve body and the detection device leads to damage to the valve body, especially when the valve body's spherical surface is being tested for sealing, the hard contact of the detection device can damage the valve body.
A detection device is designed, including a frame, a drive unit, a sealing cover, an abutment ring, a flow meter, and an elastic element. The drive unit drives the sealing cover to approach the detection groove, so that the abutment ring abuts against the spherical surface of the valve body. The elastic element supports the valve body to avoid hard contact and compression of the valve body. A chamfer is set at the contact point between the abutment ring and the valve body to increase the contact area and reduce local stress.
This effectively avoids damage to the valve body due to hard contact during the testing process, improves testing accuracy and positioning accuracy, and reduces the probability of damage to the valve body by the testing device.
Smart Images
Figure CN223581302U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sealing detection technical field, especially relate to a detection device. BACKGROUND
[0002] The sealing performance of a valve refers to the ability of preventing medium from leaking at each sealing part of the valve, and is one of the main indexes for evaluating the quality of the valve. The sealing parts of the valve mainly include the contact between the opening and closing member and the valve seat, the cooperation between the packing and the valve stem and the packing box, and the connection between the valve body and the valve cover.
[0003] In the sealing detection of the spherical surface of the valve body part, the leakage rate is required to be below 0.4L / min. In this detection, the precision requirement for product detection is high. However, the current detection of the spherical surface of the valve body is fixed vertical hard contact sealing detection. If there is a large error in the center alignment between the valve body and the detection device before detection, the valve body will be damaged.
[0004] There is an urgent need for a detection device to solve the alignment error between the valve body and the detection device and avoid damage to the valve body. CONTENT OF THE UTILITY MODEL
[0005] The main purpose of the utility model is to provide a detection device, which aims to reduce the probability of damage to the valve body by the detection device during the sealing detection of the valve body.
[0006] To achieve the above purpose, the detection device provided by the utility model is used for detecting the sealing performance of the spherical surface of a valve body, and comprises:
[0007] a rack, which is formed with a detection groove for accommodating the valve body and a gas inlet hole communicating with the detection groove; and
[0008] a detection assembly, which comprises a driving member, a sealing cover, an abutting ring, a flowmeter and an elastic member, the driving member is arranged on the rack, the sealing cover is drivingly connected to the output end of the driving member, the abutting ring is connected to the side of the sealing cover facing the detection groove, the driving member drives the sealing cover to approach the slot opening of the detection groove so that the spherical surface abuts against the circumferential edge of the abutting ring, the elastic member is arranged on the bottom wall of the detection groove and is used for supporting the valve body, and the flowmeter is arranged on the rack and communicates with the gas inlet hole.
[0009] In an embodiment, the inner circumferential edge of the side of the abutting ring facing the elastic member is formed with a chamfer.
[0010] In an embodiment, the sealing cover is formed with a positioning groove, and the abutting ring is arranged on the groove wall of the positioning groove; the inner diameter of the positioning groove is greater than the inner diameter of the abutting ring.
[0011] In an embodiment, a clamping groove is formed on the groove wall of the positioning groove, and a clamping ring part is protruded on the outer edge of the abutting ring, and the clamping ring part is clamped with the groove wall of the clamping groove.
[0012] In an embodiment, the detection assembly further comprises a sealing ring, which is arranged on the side of the sealing cover facing the detection groove, and the inner diameter of the sealing ring is larger than the inner diameter of the detection groove.
[0013] In an embodiment, a sealing ring groove is formed on the side of the sealing cover facing the detection groove, and the sealing ring is arranged in the sealing ring groove.
[0014] In an embodiment, the detection assembly further comprises a connecting rod, which is drivingly connected to the output end of the driving member; and the machine frame further forms a limiting hole, and the connecting rod is connected to the sealing cover through the limiting hole.
[0015] In an embodiment, the driving member is a movable handle, which is rotatably connected to the machine frame and drivingly connected with the connecting rod; and the movable handle is used to drive the connecting rod to move.
[0016] In an embodiment, the depth of the detection groove is H, and the length of the elastic member is L, and H is greater than 1.2L.
[0017] In an embodiment, the elastic member is a spring.
[0018] In the technical scheme of the utility model, the detection device comprises a machine frame and a detection assembly, the machine frame forms a detection groove accommodating a valve body and an air inlet hole communicating with the detection groove; the detection assembly comprises a driving member, a sealing cover, an abutting ring, a flowmeter and an elastic member, the driving member is arranged on the machine frame, the sealing cover is drivingly connected to the output end of the driving member; the abutting ring is connected to the side of the sealing cover facing the detection groove, the driving member drives the sealing cover to approach the slot of the detection groove so that the spherical surface abuts against the peripheral edge of the abutting ring; the elastic member is arranged on the bottom wall of the detection groove and is used to support the valve body; and the flowmeter is arranged on the machine frame and communicates with the air inlet hole. In the technical scheme of the utility model, when the driving member drives the sealing cover to move towards the detection groove, the abutting ring can abut against the spherical surface of the valve body and compress the spring; thus, in the case that the valve body and the detection device are not accurately centered, the abutting ring can avoid hard contact and extrusion of the valve body and damage to the valve body. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor.
[0020] Figure 1 The structural schematic diagram of the detection device according to an embodiment of the present application is provided.
[0021] Figure 2 The structural schematic diagram of the detection device according to another embodiment of the present application is provided.
[0022] Figure 3 The structural schematic diagram of the detection device according to another embodiment of the present application is provided. Figure 2 The sectional view along A-A.
[0023] Figure 4 The structural schematic diagram of the detection device according to another embodiment of the present application is provided. Figure 3 The local enlarged view at B in the detection device.
[0024] Explanation of the reference signs:
[0025] Reference Name Reference Name 1000 Detection device 22b Sealing ring groove 1 Frame 23 Butt ring 1a Detection groove 231 Clamping ring part 1b Air inlet hole 24 Flow meter 1c Limiting hole 25 Elastic member 21 Driving member 26 Sealing ring 22 Sealing cover 27 Connecting rod 22a Positioning groove
[0026] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0028] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.
[0029] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not in the protection scope required by the utility model.
[0030] The utility model provides a detection device 1000.
[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 In an embodiment of the utility model, the detection device 1000 includes rack 1 and detection assembly, and the rack 1 is formed with the detection groove 1a accommodating valve body and the air inlet hole 1b communicating the detection groove 1a;Detection assembly includes driving part 21, sealing cover 22, abutment ring 23, flowmeter 24 and elastic part 25, and the driving part 21 is arranged in the rack 1, and the sealing cover 22 is drivingly connected to the output end of the driving part 21;The abutment ring 23 is connected to the side of sealing cover 22 facing the detection groove 1a, and the driving part 21 drives the sealing cover 22 to be close to the slot of detection groove 1a to make the spherical surface abut with the circumference of abutment ring 23;The elastic part 25 is arranged on the bottom wall of detection groove 1a and is used to support valve body;The flowmeter 24 is arranged in the rack 1 and is communicated with the air inlet hole 1b.
[0032] In the technical scheme of the utility model, when the driving part 21 drives the sealing cover 22 to move to the direction of detection groove 1a, the abutment ring 23 can abut with the spherical surface of valve body and compress spring;So in the case of large error of valve body and detection device 1000 center alignment, abutment ring 23 can also avoid hard contact and extrusion valve body to cause damage to valve body.
[0033] Please refer to Figure 4 In an embodiment of the utility model, the inner periphery of the side of abutment ring 23 facing elastic part 25 is formed with chamfer. The existence of chamfer can increase the contact area of abutment ring 23 and valve body spherical surface, reduce the local stress of abutment ring 23 and valve body contact, thereby reducing the abrasion of abutment ring 23 to valve body, and reducing the probability of damage to valve body by detection device 1000 during valve body sealing detection.
[0034] Please refer toFigure 3 And Figure 4 In an embodiment of the present application, the sealing cover 22 is formed with a positioning groove 22a, and the abutting ring 23 is arranged on the groove wall of the positioning groove 22a; the inner diameter of the positioning groove 22a is larger than the inner diameter of the abutting ring 23. By forming the positioning groove 22a on the sealing cover 22 and arranging the abutting ring 23 on the groove wall, the valve body can be preliminarily aligned by the groove wall of the positioning groove 22a during the movement of the sealing cover 22, thereby improving the positioning accuracy of the entire detection device 1000 and reducing the probability of damaging the valve body during valve body sealing detection.
[0035] The connection form of the sealing cover 22 and the abutting ring 23 can be clamping or bonding. Please refer to Figure 4 In an embodiment of the present application, a clamping groove is formed on the groove wall of the positioning groove 22a, and the outer edge of the abutting ring 23 is provided with a clamping ring part 231, and the clamping ring part 231 is clamped with the groove wall of the clamping groove. By forming the clamping groove on the groove wall of the positioning groove 22a and clamping the clamping ring part 231 of the abutting ring 23 with the groove wall of the clamping groove, the connection stability between the abutting ring 23 and the positioning groove 22a is enhanced, and the reliability during detection is ensured; the clamping design simplifies the assembly process between the abutting ring 23 and the sealing cover 22, without the need for additional fasteners or complex assembly steps, which can improve the assembly efficiency. Therefore, clamping is more suitable as the connection form of the sealing cover 22 and the abutting ring 23.
[0036] Please refer to Figure 4 In an embodiment of the present application, the detection assembly further comprises a sealing ring 26, which is arranged on the side of the sealing cover 22 facing the detection groove 1a, and the inner diameter of the sealing ring 26 is larger than the inner diameter of the detection groove 1a, so as to cover the space of the detection groove 1a to the maximum extent. By further sealing the connection between the sealing cover 22 and the rack 1 through the sealing ring 26, the accuracy of the sealing detection can be further improved.
[0037] Please refer to Figure 4 In an embodiment of the present application, the side of the sealing cover 22 facing the detection groove 1a is formed with a sealing ring groove 22b, and the sealing ring 26 is located in the sealing ring groove 22b. By placing the sealing ring 26 in the sealing ring groove 22b, the sealing effect of the sealing ring 26 can be effectively avoided due to the movement of the sealing cover 22, and the correct position of the sealing ring 26 during detection is ensured, thereby improving the sealing effect.
[0038] Please refer to Figure 1 And Figure 3In an embodiment of the utility model, the detection assembly further comprises a connecting rod 27, the connecting rod 27 is drivingly connected to the output end of the driving member 21, the rack 1 further forms a limiting hole 1c, and the connecting rod 27 is connected to the sealing cover 22 through the limiting hole 1c. The movement direction of the connecting rod 27 is limited by the hole wall of the limiting hole 1c, so that the sealing cover 22 moves in the vertical direction, thereby realizing more accurate alignment of the abutting ring 23 and the valve body and reducing the probability that the valve body is damaged by the detection device 1000 during valve body sealing detection.
[0039] The driving member 21 can be a driving motor, can be a driving cylinder, and can also be a movable handle for the user to twist. Please refer to Figure 1 and Figure 2 In an embodiment of the utility model, the driving member 21 is a movable handle, the movable handle is rotatably connected to the rack 1 and is drivingly connected to the connecting rod 27, and the movable handle is used to drive the connecting rod 27 to move. The design of the movable handle enables the user to directly hold and rotate the handle to drive the connecting rod 27 to move, and this direct operation mode improves the convenience of operation. Therefore, the driving member 21 is preferably a movable handle.
[0040] In an embodiment of the utility model, the depth of the detection groove 1a is H, the length of the elastic member 25 is L, and H≥1.2L. By ensuring that the depth H of the detection groove 1a is at least 1.2 times the length L of the elastic member 25, sufficient space can be provided to support the valve body, so as to avoid that most of the structure of the valve body protrudes from the detection groove 1a.
[0041] The elastic member 25 can be elastic silica gel or a spring. In an embodiment of the utility model, the elastic member 25 is a spring. The spring material generally has good durability and fatigue resistance, can maintain performance in long-term operation, and reduces the need for maintenance and replacement. Therefore, the spring is preferably used as the elastic member 25.
[0042] The above description is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.
Claims
1. A detection device (1000) for detecting the sealing performance of a spherical surface of a valve body, characterized in that, The detection device (1000) comprises: a rack (1) formed with a detection groove (1a) accommodating the valve body and an air inlet hole (1b) communicating with the detection groove (1a); and a detection assembly comprising a driving member (21), a sealing cover (22), an abutting ring (23), a flow meter (24) and an elastic member (25), the driving member (21) being arranged on the rack (1), the sealing cover (22) being drivingly connected to an output end of the driving member (21); the abutting ring (23) being connected to a side of the sealing cover (22) facing the detection groove (1a), the driving member (21) driving the sealing cover (22) to approach a slot opening of the detection groove (1a) so that the spherical surface abuts against a peripheral edge of the abutting ring (23); the elastic member (25) being arranged on a bottom wall of the detection groove (1a) and used for supporting the valve body; and the flow meter (24) being arranged on the rack (1) and communicating with the air inlet hole (1b).
2. The detection device (1000) according to claim 1, characterized in that An inner peripheral edge of a side of the abutting ring (23) facing the elastic member (25) is formed with a chamfer.
3. The detection device (1000) according to claim 2, characterized in that The sealing cover (22) is formed with a positioning groove (22a), and the abutting ring (23) is arranged on a groove wall of the positioning groove (22a); an inner diameter of the positioning groove (22a) is greater than an inner diameter of the abutting ring (23).
4. The detection device (1000) according to claim 3, characterized in that A clamping groove is formed on the groove wall of the positioning groove (22a), and an outer edge of the abutting ring (23) is provided with a clamping ring portion (231) clamped with the groove wall of the clamping groove.
5. The detection apparatus (1000) as defined in claim 1, characterized in that The detection assembly further comprises a sealing ring (26) arranged on a side of the sealing cover (22) facing the detection groove (1a), and an inner diameter of the sealing ring (26) is greater than an inner diameter of the detection groove (1a).
6. The detection device (1000) according to claim 5, characterized in that A sealing ring groove (22b) is formed on a side of the sealing cover (22) facing the detection groove (1a), and the sealing ring (26) is located in the sealing ring groove (22b).
7. The detection device (1000) according to any one of claims 1 to 6, characterized in that The detection assembly further comprises a connecting rod (27) drivingly connected to an output end of the driving member (21); and the rack (1) is further formed with a limiting hole (1c), and the connecting rod (27) is connected to the sealing cover (22) through the limiting hole (1c).
8. The detection device (1000) according to claim 7, characterized in that The driving member (21) is a movable handle, the movable handle is rotatably connected to the rack (1) and drivingly connected with the connecting rod (27), and the movable handle is used for driving the connecting rod (27) to move.
9. The detection device (1000) according to any one of claims 1 to 6, characterized in that A depth of the detection groove (1a) is H, and a length of the elastic member (25) is L, and H is greater than 1.2L.
10. The detection device (1000) according to any one of claims 1 to 6, characterized in that The elastic member (25) is a spring.