Metering assembly and gas metering device
By designing a metering component that does not use metal springs, the connection mechanism between the adapter and the metering module is used to achieve the connection, which solves the safety hazards caused by the metal springs during assembly, and achieves a safer and more Economical assembly process.
Patent Information
- Application Number
- CN202421105153.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-20
AI Technical Summary
During the assembly process of metering module, the sharp end of the metal spring is prone to scratch the operator, which poses safety hazards.
A metering assembly is designed to enable connection through a clamping mechanism between the adapter and the module connector of the metering module without the use of a metal spring. The clamping mechanism includes an adapter clamping mechanism and a module clamping mechanism, and is cooperated through a removable clamping method.
It effectively avoids the problem of the operator being scratched by the metal spring during assembly, reduces safety risks during assembly, and avoids damage caused by repeated use of the metal spring, saving costs.
Smart Images
Figure CN222438908U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas equipment, in particular to a metering component and a gas metering device. Background Art
[0002] The metering module is the core component of the metering device. During assembly, the air outlet of the metering module is usually connected to the adapter through a metal retaining spring.
[0003] However, since the free end of the metal retaining spring is relatively sharp, the operator's hand may be easily scratched during assembly, which poses a safety hazard.
[0004] Therefore, how to reduce the potential safety hazards in the assembly process of the metering module has become a technical problem that needs to be solved urgently in this field. Utility Model Content
[0005] The purpose of the utility model is to at least solve the technical problem of how to reduce the potential safety hazards in the process of assembling the metering module. This purpose is achieved through the following technical solutions:
[0006] In the first aspect, the utility model proposes a metering component, which includes: an adapter provided with an adapter clamping mechanism; and a metering module, the air outlet of the metering module constitutes a module joint, the module joint is sleeved on the outer wall of the adapter, the inner wall of the module joint is provided with a module clamping mechanism, and the module clamping mechanism and the adapter clamping mechanism are detachably clamped and matched.
[0007] When assembling this metering component, it is only necessary to sleeve the module connector of the metering module onto the outer wall of the adapter and engage the module clamping mechanism with the adapter clamping mechanism to achieve the connection between the metering module and the adapter. There is no need to connect the module connector and the adapter through a metal retaining spring, which avoids the problem of the operator's hands being scratched by the metal retaining spring and reduces the safety hazards during the assembly process.
[0008] In some embodiments of the utility model, the adapter includes an adapter body and an adapter joint, the adapter clamping mechanism is arranged on the adapter joint, and the module joint is sleeved on the outer wall of the adapter joint; the adapter clamping mechanism has multiple first alignment parts, the module clamping mechanism has multiple second alignment parts, and the metering component is configured to be able to switch between a first state and a second state by rotation; when the metering component is in the first state, the multiple first alignment parts correspond to the multiple second alignment parts one by one; when the metering component is in the second state, the module clamping mechanism is clamped with the adapter clamping mechanism.
[0009] In some embodiments of the utility model, the outer wall of the adapter has a first protrusion protruding in the radial direction of the adapter, and the first protrusion extends along the circumferential direction of the adapter. The adapter includes a first clamping portion, and the first clamping portion is located at one end of the adapter away from the adapter body. The first clamping portion has a plurality of first adapter protrusions protruding in the radial direction of the adapter. The plurality of first adapter protrusions are arranged at circumferential intervals around the first clamping portion, and an avoidance groove is formed between any two adjacent first adapter protrusions; along the arrangement direction of the adapter and the metering module, a first clamping groove is formed between each first adapter protrusion and the first protrusion; the inner wall of the module joint is provided with a plurality of module protrusions for clamping and cooperating with the plurality of first clamping grooves, and the plurality of module protrusions are arranged at circumferential intervals around the inner wall of the module joint, and each module protrusion protrudes in the radial direction of the module joint. A plurality of module protrusions are arranged in one-to-one correspondence with the plurality of avoidance grooves, and the plurality of module protrusions are arranged in one-to-one correspondence with the plurality of first clamping grooves, the plurality of module protrusions are configured to be able to enter the first rotation channel between the first clamping portion and the first protrusion through the plurality of avoidance grooves respectively, the first rotation channel extends along the circumferential direction of the adapter, the plurality of first clamping grooves are spaced apart around the extension direction of the first rotation channel, the module joint is configured to be able to rotate along the first rotation channel so that each module protrusion is respectively clamped in the first clamping groove corresponding to the module protrusion; the first protrusion, the first rotation channel, the plurality of first clamping grooves, the plurality of first adapter protrusions, and the plurality of avoidance grooves together constitute an adapter clamping mechanism, and each avoidance groove constitutes a first alignment portion; the plurality of module protrusions constitute a module clamping mechanism, and each module protrusion constitutes a second alignment portion.
[0010] In some embodiments of the utility model, the size of each avoidance groove is different, and the size of each module protrusion is different; in any set of corresponding avoidance grooves and module protrusions: the module protrusion is configured to be able to enter the first rotation channel between the first clamping portion and the first protrusion through the avoidance groove.
[0011] In some embodiments of the utility model, the inner wall of the module joint is also provided with a limit boss protruding in the radial direction of the module joint. Along the arrangement direction of the adapter and the metering module, the limit boss is located on the side of the module boss away from the opening of the air outlet. The limit boss is configured to be able to abut against the side edge of the first adapter boss to limit the circumferential rotation of the module joint relative to the adapter around the module joint.
[0012] In some embodiments of the utility model, the outer wall of the adapter is provided with a plurality of second adapter protrusions, the plurality of second adapter protrusions are arranged at circumferential intervals around the adapter, and each second adapter protrusion is arranged to protrude in the radial direction of the adapter; the inner wall of the module joint is provided with a plurality of module slots for snap-fitting with the plurality of second adapter protrusions, each module slot is recessed in the radial direction of the adapter, the plurality of module slots are arranged at circumferential intervals around the module joint, and the plurality of module slots are arranged in one-to-one correspondence with the plurality of second adapter protrusions, the plurality of second adapter protrusions constitute an adapter snap-fit mechanism, and each second adapter protrusion constitutes a first alignment portion; the plurality of module slots constitute a module snap-fit mechanism.
[0013] In some embodiments of the utility model, the module slot includes a positioning slot and a limiting slot; in a module slot: the positioning slot and the limiting slot are arranged around the circumferential direction of the module joint, and the positioning slot and the limiting slot together constitute a second rotation channel; and along the arrangement direction of the adapter and the metering module, the width of the positioning slot is greater than the width of the limiting slot, and the positioning slot constitutes a second alignment portion; the adapter is configured to be able to rotate in the second rotation channel so that each second adapter protrusion is respectively engaged with the limiting slot corresponding to the second adapter protrusion.
[0014] In some embodiments of the present invention, the size of each second adapter protrusion is different, and the size of each positioning slot is different; in any set of corresponding second adapter protrusions and module slots: the second adapter protrusion is configured to be able to enter the second rotation channel through the positioning slot.
[0015] In some embodiments of the present invention, the module slot passes through the side wall of the module joint, and a reinforcement portion is provided at one end of the module joint close to the adapter, and the reinforcement portion is arranged around the circumference of the module joint.
[0016] In a second aspect, the utility model provides a gas metering device, which includes any one of the above-mentioned metering components.
[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0019] Figure 1A schematic diagram of the structure of a metering assembly provided in one embodiment of the utility model;
[0020] Figure 2 An exploded view of a metering assembly provided in one embodiment of the utility model;
[0021] Figure 3 A cross-sectional view of a metering assembly provided in one embodiment of the utility model at a viewing angle;
[0022] Figure 4 for Figure 3 The enlarged view of point A in the middle;
[0023] Figure 5 A partial structural cross-sectional view of a metering assembly provided in one embodiment of the utility model;
[0024] Figure 6 A schematic diagram of the structure of an adapter in a metering assembly provided in an embodiment of the utility model at a viewing angle;
[0025] Figure 7 A schematic diagram of the structure of an adapter in a metering assembly provided in an embodiment of the utility model from another perspective;
[0026] Figure 8 A schematic diagram of a portion of the structure of a metering module in a metering assembly provided in one embodiment of the utility model at a viewing angle;
[0027] Fig. 9 A schematic structural diagram of a metering assembly provided in another embodiment of the utility model;
[0028] Fig.10 An exploded view of a metering assembly provided in another embodiment of the utility model;
[0029] Fig.11 A cross-sectional view of a metering assembly provided in another embodiment of the utility model at a viewing angle;
[0030] Fig.12 for Fig.11 The enlarged view of point B in the middle;
[0031] Fig.13 A partial structural cross-sectional view of a metering assembly provided in another embodiment of the utility model;
[0032] Fig.14 A schematic structural diagram of an adapter in a metering assembly provided in another embodiment of the utility model at a viewing angle;
[0033] Fig.15 A schematic structural diagram of an adapter in a metering assembly provided in another embodiment of the utility model at another viewing angle;
[0034] Fig.16 A schematic diagram of the partial structure of a metering module in a metering assembly provided in another embodiment of the utility model at a viewing angle.
[0035] The reference numerals are as follows:
[0036] 100. Metering components;
[0037] 1. Adapter; 11. Adapter; 111. First clamping groove; 112. First protrusion; 113. First clamping portion; 1131. First adapter protrusion; 1131a. Abutting side; 1132. Avoidance groove; 114. First rotation channel; 115. First sealing groove; 116. Second adapter protrusion; 117. Second sealing groove; 12. Adapter body;
[0038] 2. Metering module; 21. Module joint; 211. Module protrusion; 212. Limiting boss; 213. Module slot; 2131. Positioning slot; 2132. Limiting slot; 214. Second rotating channel; 215. Reinforcement part;
[0039] 3. The first sealing ring;
[0040] 4. Second sealing ring. DETAILED DESCRIPTION
[0041] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0042] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.
[0043] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.
[0044] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.
[0045] Figure 1 A schematic diagram of the structure of a metering assembly provided in one embodiment of the utility model; Figure 2 This is an exploded view of a metering assembly provided in one embodiment of the utility model. Figure 1 and Figure 2 The utility model provides a metering component 100, which includes: an adapter 1, which is provided with an adapter clamping mechanism; and a metering module 2, the air outlet of the metering module constitutes a module joint 21, the module joint 21 is sleeved on the outer wall of the adapter 1, and the inner wall of the module joint 21 is provided with a module clamping mechanism, and the module clamping mechanism and the adapter clamping mechanism are detachably clamped and matched.
[0046] In this embodiment, when the metering assembly 100 needs to be assembled, the module connector 21 of the metering module only needs to be sleeved on the outer wall of the adapter 1, and the module clamping mechanism and the adapter clamping mechanism are clamped to achieve the connection between the metering module and the adapter 1.
[0047] Therefore, this metering assembly 100 does not require any external connectors (such as metal retaining springs) during assembly, thus avoiding the problem of operators' hands being scratched by metal retaining springs during assembly, thereby reducing potential safety hazards during assembly.
[0048] In addition, since there is no need to use a metal retaining spring, damage to the metal retaining spring due to repeated use is avoided, thus saving costs to a certain extent.
[0049] Continue to refer Figure 1 and Figure 2 According to an optional embodiment of the utility model, the adapter 1 includes an adapter body 12 and an adapter joint 11, the adapter clamping mechanism is arranged on the adapter joint 11, and the module joint 21 is sleeved on the outer wall of the adapter joint 11; the adapter clamping mechanism has a plurality of first alignment portions, the module clamping mechanism has a plurality of second alignment portions, and the metering component 100 is configured to be switchable between a first state and a second state by rotation; when the metering component 100 is in the first state, the plurality of first alignment portions correspond to the plurality of second alignment portions one by one; when the metering component 100 is in the second state, the module clamping mechanism is clamped with the adapter clamping mechanism.
[0050] The adapter 1 may be an adapter elbow, wherein the adapter body 12 is a tubular structure, and the adapter 11 is installed on the side wall of one end of the tubular structure.
[0051] In this embodiment, when assembling the metering component 100, each first alignment portion is first aligned with the second alignment portion that cooperates with the first alignment portion to adjust the metering component 100 to the first state, and then the adapter and the module joint are relatively rotated until the module clamping mechanism and the adapter clamping mechanism are clamped, and the metering component 100 is assembled.
[0052] Figure 3 A cross-sectional view of a metering assembly provided in one embodiment of the utility model at a viewing angle; Figure 4 for Figure 3 The enlarged view of point A in the middle; Figure 5 A partial structural cross-sectional view of a metering assembly provided in one embodiment of the utility model; Figure 6 A schematic diagram of the structure of an adapter in a metering assembly provided in an embodiment of the utility model at a viewing angle; Figure 7 A schematic diagram of the structure of an adapter in a metering assembly provided in an embodiment of the utility model from another perspective; Figure 8 A schematic diagram of a portion of the structure of a metering module in a metering assembly provided by an embodiment of the utility model at a viewing angle. Figure 1-Figure 8According to an optional embodiment of the utility model, the outer wall of the adapter 11 has a first protrusion 112 protruding in the radial direction of the adapter 11, and the first protrusion 112 extends along the circumferential direction of the adapter 11. The adapter 11 includes a first clamping portion 113, and the first clamping portion 113 is located at an end of the adapter 11 away from the adapter body 12. The first clamping portion 113 has a plurality of first adapter protrusions 1131 protruding in the radial direction of the adapter 11, and the plurality of first adapter protrusions 1131 are arranged around the first clamping portion 113. The first adapter protrusions 1131 are arranged at intervals in the circumferential direction, and an avoidance groove 1132 is formed between any two adjacent first adapter protrusions 1131; along the arrangement direction of the adapter 11 and the metering module 2, a first clamping groove 111 is formed between each first adapter protrusion 1131 and the first protrusion 112; the inner wall of the module joint 21 is provided with a plurality of module protrusions 211 for clamping with the plurality of first clamping grooves 111, and the plurality of module protrusions 211 are arranged at intervals in the circumferential direction around the inner wall of the module joint 21, and each module protrusion 211 is oriented in the radial direction of the module joint 21. The plurality of module protrusions 211 are arranged in one-to-one correspondence with the plurality of avoidance grooves 1132, and the plurality of module protrusions 211 are arranged in one-to-one correspondence with the plurality of first card grooves 111. The plurality of module protrusions 211 are configured to be able to enter the first rotation channel 114 between the first clamping portion 113 and the first protrusion 112 through the plurality of avoidance grooves 1132 respectively. The first rotation channel 114 extends along the circumferential direction of the adapter 11. The plurality of first card grooves 111 are spaced apart around the extension direction of the first rotation channel 114. The module connector 21 is It is configured to be able to rotate along the first rotating channel 114 so that each module protrusion 211 is respectively engaged with the first engaging groove 111 corresponding to the module protrusion 211; the first protrusion 112, the first rotating channel 114, multiple first engaging grooves 111, multiple first transfer protrusions 1131, and multiple avoidance grooves 1132 together constitute a transfer engaging mechanism, and each avoidance groove 1132 constitutes a first alignment portion; multiple module protrusions 211 constitute a module engaging mechanism, and each module protrusion 211 constitutes a second alignment portion.
[0053] In this embodiment, when the metering component 100 needs to be assembled, the module connector 21 of the metering module only needs to be sleeved on the outer wall of the adapter 11, so that the module protrusion 211 on the inner wall of the module connector 21 is engaged with the first slot 111 on the outer wall of the adapter 11, and the connection between the metering module and the adapter 1 can be achieved.
[0054] The connection method of the protrusion and the slot is simple in process, can ensure the reliability of the connection, and is easy to operate during assembly.
[0055] Specifically, the assembly method of the metering component 100 provided in this embodiment is described in detail below. For the convenience of description, the arrangement direction of the adapter 11 and the metering module 2 is defined as a first direction:
[0056] When the metering component 100 needs to be assembled, the module joint 21 and the adapter 11 are first moved closer to each other along the first direction, and the plurality of module protrusions 211 are respectively moved into the first rotation channel 114 between the first clamping portion 113 and the first protrusion 112 through the plurality of avoidance grooves 1132, so that the module joint 21 is sleeved on the outer wall of the adapter 11. At this time, the metering component 100 is in the first state, and then the module joint 21 and the adapter 11 are relatively rotated around the circumference of the module joint 21 until the plurality of module protrusions 211 are respectively clamped in the first clamping grooves 111 corresponding to themselves, so that the connection between the metering module and the adapter 1 can be achieved, that is, the metering component 100 is When disassembling, it is only necessary to rotate the module joint 21 and the adapter 11 in opposite directions around the circumference of the module joint 21 so that the multiple module protrusions 211 correspond to the positions of the multiple avoidance grooves 1132 one by one, that is, the metering component 100 is switched back to the first state from the second state, and then the multiple module protrusions 211 are pulled out from the first rotation channel 114 between the first clamping portion 113 and the first protrusion 112. When pulling out, the positions of the multiple module protrusions 211 correspond to the avoidance grooves 1132 corresponding to themselves, so that the multiple module protrusions 211 are moved out of the first rotation channel 114, thereby realizing the disassembly of the metering component 100.
[0057] The relationship between the first rotation channel 114 and the first clamping groove 111 is further described: along the first direction, the first rotation channel 114 is between the first clamping portion 113 and the first protrusion 112, and the first rotation channel 114 extends around the circumferential direction of the adapter 11, that is, the first rotation channel 114 is a circle of concave structure on the outer wall of the adapter 11. A plurality of first clamping grooves 111 are distributed at intervals around the extension direction of the first rotation channel 114, that is, when a portion of the first rotation channel 114 has the first protrusion 112 and the first adapter protrusion 1131 of the first clamping portion 113 on both sides along the first direction, the portion constitutes the first clamping groove 111.
[0058] This arrangement not only enables connection between the metering module and the adapter 1 to be achieved through snap-fitting, but also because a plurality of module protrusions 211 are ultimately snap-fitted to the first slots 111 corresponding thereto, the module protrusions 211 and the first slots 111 can limit each other in the first direction, thereby preventing relative displacement in the first direction between the adapter 11 and the module connector 21, further improving the reliability of the connection and ensuring the assembly quality of the metering component 100.
[0059] In addition, the reason why there are multiple first card slots 111 and module protrusions 211 is that if the number of the two is too small, for example, only one of each is provided, there is a risk of loose connection; but if the number of the two is too large, for example, six, seven or more of each are provided, the production process is more complicated and the difficulty of assembly is increased.
[0060] Therefore, reference Figure 2 and Figure 8 As an optional embodiment of the present invention, there can be three first adapter protrusions 1131, which are evenly spaced around the circumference of the first clamping portion 113; there can also be three module protrusions 211, which are evenly spaced around the circumference of the inner wall of the module joint 21. In this way, while ensuring the connection reliability of the adapter 11 and the module joint 21, the difficulty of assembly will not be increased too much, and the evenly spaced arrangement can ensure that the metering component 100 is evenly stressed during assembly, thereby ensuring the overall service life of the metering component 100 to a certain extent.
[0061] According to an optional embodiment of the utility model, the size of each avoidance groove 1132 is different, and the size of each module protrusion 211 is different; in any group of corresponding avoidance grooves 1132 and module protrusions 211: the module protrusion 211 is configured to be able to enter the first rotation channel 114 between the first clamping portion 113 and the first protrusion 112 through the avoidance groove 1132.
[0062] In this embodiment, reference Figure 6 Since the avoidance groove 1132 is formed between the two first transfer protrusions 1131, and the size of each avoidance groove 1132 is different, a feasible way is to set the size of each first transfer protrusion 1131 in the circumferential direction of the adapter to be different (i.e. Figure 6 In this way, each module protrusion 211 can only pass through an avoidance groove 1132 that matches its own size. If a module protrusion 211 wants to pass through the avoidance groove 1132 whose size corresponds to that of other module protrusions 211, the module protrusion 211 cannot pass through the avoidance groove 1132. In other words, when assembling the metering component 100, there is only one correct relative position between the adapter 11 and the module connector 21 that can make the metering component 100 in the first state; therefore, only when each module protrusion 211 corresponds to the avoidance groove 1132 that matches its own size, multiple module protrusions 211 can enter the position of the first rotation channel 114 between the first clamping portion 113 and the first protrusion 112 together.
[0063] The purpose of this arrangement is to determine the position at which multiple module protrusions 211 can enter the first rotating channel 114 between the first clamping portion 113 and the first protrusion 112 together, and the position is unique. After the position is determined, the module joint 21 and the adapter 11 can rotate relative to each other at a certain angle to achieve the multiple module protrusions 211 being respectively clamped in the first clamping grooves 111 corresponding to themselves, thereby achieving complete assembly of the metering component 100.
[0064] Therefore, this setting method of the present embodiment can play a fool-proof role, confirm the connection position of the adapter 11 and the module connector 21, and ensure the correct relative position of the adapter 11 and the module connector 21 after rotation and snap connection, thereby improving the overall assembly efficiency of the metering component 100.
[0065] refer to Figure 5 According to an optional embodiment of the utility model, the inner wall of the module joint 21 is also provided with a limiting boss 212 protruding in the radial direction of the module joint 21. Along the arrangement direction of the adapter 11 and the metering module 2 (i.e., the first direction mentioned above), the limiting boss 212 is located on the side of the module protrusion 211 away from the opening of the air outlet. The limiting boss 212 is configured to be able to abut against the side edge of the first adapter protrusion 1131 to limit the circumferential rotation of the module joint 21 relative to the adapter 11 around the module joint 21.
[0066] Among them, the setting position of the limit boss 212 should meet the following requirements: when the module connector 21 and the adapter 11 are relatively rotated until the limit boss 212 abuts against the side of the first adapter protrusion 1131, multiple module protrusions 211 are respectively engaged in the first slots 111 corresponding to themselves, and the relative positions of the module connector 21 and the adapter 11 are correct.
[0067] In addition, the limiting boss 212 is configured to be able to abut against the side edge of the first transfer protrusion 1131, see Figure 7 For the convenience of description, the side edge is named as the abutment side edge 1131a, which refers to the side edge of the first adapter protrusion 1131 in the circumferential direction of the adapter 11 (i.e., the narrow side of the first adapter protrusion 1131). That is to say, when the plurality of module protrusions 211 enter the first rotation channel 114 between the first clamping portion 113 and the first protrusion 112, the limiting boss 212 does not completely enter the first rotation channel 114, and therefore can abut against the abutment side edge 1131a of the first adapter protrusion 1131, thereby limiting the circumferential rotation of the module joint 21 relative to the adapter 11 around the module joint 21.
[0068] In this embodiment, after the multiple module protrusions 211 respectively enter the first rotation channel 114 between the first clamping portion 113 and the first protrusion 112 through the multiple avoidance grooves 1132, that is, after the module joint 21 is sleeved on the outer wall of the adapter 11, the module joint 21 and the adapter 11 are relatively rotated around the circumference of the module joint 21. During the rotation process, the limiting boss 212 will abut against the side of the first adapter protrusion 1131. At this time, the overall assembly of the metering component 100 is completed.
[0069] As mentioned above, in order to further improve the overall assembly efficiency of the metering component 100, it is necessary to ensure that the relative positions of the adapter 11 and the module connector 21 are correct after rotation and engagement, and the setting of the limiting boss 212 can limit the relative rotation between the module connector 21 and the adapter 11, thereby preventing the first rotation from failing to engage with the first slot 111 corresponding to itself due to excessive rotation during assembly.
[0070] Therefore, the arrangement of this embodiment can further ensure the overall assembly efficiency of the metering component 100; that is, as long as the limiting boss 212 abuts against the side of the first adapter protrusion 1131 during the relative rotation of the module joint 21 and the adapter 11, the limiting function is activated and the rotation cannot continue, which means that the relative position of the module joint 21 and the adapter 11 is correct at this time, and the assembly of the module joint 21 and the adapter 11 is completed.
[0071] refer to Figures 2 to 4 ,as well as Figure 7 As an optional embodiment of the present utility model, the metering component 100 also includes a first sealing ring 3, and the outer wall of the adapter 11 is also provided with a first sealing groove 115 for installing the first sealing ring 3. Along the arrangement direction of the adapter 11 and the metering module 2 (that is, the first direction mentioned above), the first sealing groove 115 is located between the first card slot 111 and the adapter body 12.
[0072] In this embodiment, when the inner wall of the module joint 21 is sleeved on the outer wall of the adapter 11, the first sealing ring 3 can seal the gap between the inner and outer walls of the two in the circumferential direction of the adapter 11, thereby ensuring the sealing of the connection between the module joint 21 and the adapter 11.
[0073] In addition, since the inner wall of the module joint 21 is sleeved on the outer wall of the adapter 11, the multiple module protrusions 211 need to pass through multiple avoidance grooves 1132 first, in order to prevent interference between the module protrusions 211 and the first sealing ring 3, the first sealing groove 115 is set between the first card slot 111 and the adapter body 12.
[0074] Fig. 9 A schematic diagram of the structure of a metering assembly provided in another embodiment of the utility model is shown in FIG. Fig.10An exploded view of a metering assembly provided in another embodiment of the utility model; Fig.11 A cross-sectional view of a metering assembly provided in another embodiment of the utility model at a viewing angle; Fig.12 for Fig.11 The enlarged view of point B in the middle; Fig.13 A partial structural cross-sectional view of a metering assembly provided in another embodiment of the utility model; Fig.14 A schematic structural diagram of an adapter in a metering assembly provided in another embodiment of the utility model at a viewing angle; Fig.15 A schematic structural diagram of an adapter in a metering assembly provided in another embodiment of the utility model at another viewing angle; Fig.16 A schematic diagram of a portion of the structure of a metering module in a metering assembly provided in another embodiment of the present invention at a viewing angle. Figure 9-Figure 16 According to an optional embodiment of the utility model, the outer wall of the adapter 11 is provided with a plurality of second adapter protrusions 116, the plurality of second adapter protrusions 116 are arranged around the circumference of the adapter 11, and each second adapter protrusion 116 is arranged to protrude in the radial direction of the adapter 11; the inner wall of the module joint 21 is provided with a plurality of module card slots 213 for engaging with the plurality of second adapter protrusions 116, each module card slot 213 is recessed in the radial direction of the adapter 11, the plurality of module card slots 213 are arranged at intervals around the circumference of the module joint 21, and the plurality of module card slots 213 are arranged in a one-to-one correspondence with the plurality of second adapter protrusions 116; the plurality of second adapter protrusions 116 constitute an adapter card connection mechanism, and the module card slots 213 constitute a module card connection mechanism.
[0075] In this embodiment, when the metering component 100 needs to be assembled, the module connector 21 of the metering module only needs to be sleeved on the outer wall of the adapter 11, and the second adapter protrusion 116 on the outer wall of the adapter 11 is engaged with the module slot 213 on the inner wall of the module connector 21, so as to realize the connection between the metering module and the adapter 1.
[0076] The connection method of the protrusion and the slot is simple in process, can ensure the reliability of the connection, and is easy to operate during assembly.
[0077] Specifically, the assembly method of the metering component 100 provided in this embodiment is described in detail below; similarly, for the convenience of description, the arrangement direction of the adapter 11 and the metering module 2 is defined as a first direction.
[0078] When the metering component 100 needs to be assembled, the module connector 21 and the adapter 11 are first moved closer to each other along the first direction, and the multiple second adapter protrusions 116 are respectively inserted into the multiple module slots 213, so that the module connector 21 is sleeved on the outer wall of the adapter 11, thereby realizing the connection between the metering module and the adapter 1.
[0079] This arrangement not only enables the connection between the metering module and the adapter 1 to be realized by snapping, but also because the module slot 213 is recessed in the radial direction toward the adapter 11, it is not difficult to understand that the arrangement of the module slot 213 enables the second adapter protrusion 116 and the module slot 213 to limit each other in the first direction and the circumferential direction of the module connector 21.
[0080] That is to say, when the multiple second adapter protrusions 116 are respectively inserted into the multiple module slots 213, if the adapter 11 tends to move along the first direction relative to the module connector 21, the second adapter protrusions 116 will hinder the module slots 213 in the first direction, thereby preventing the adapter 11 from moving along the first direction relative to the module connector 21; if the adapter 11 tends to rotate circumferentially around the module connector 21 relative to the module connector 21, the side edges of the second adapter protrusions 116 will also hinder the module slots 213 in the circumferential direction, thereby preventing the adapter 11 from rotating circumferentially around the module connector 21 relative to the module connector 21.
[0081] Therefore, the metering component 100 of this embodiment can not only ensure the connection reliability between the adapter 11 and the module connector 21 , but also limit the two in multiple directions, thereby ensuring the assembly quality of the metering component 100 .
[0082] Among them, the reason why there are multiple second adapter protrusions 116 and module slots 213 is that if the number of the two is too small, for example, only one of each is set, there is a risk of loose connection; but if the number of the two is too large, for example, six, seven or more of each are set, the production process is more complicated and the difficulty of assembly is increased.
[0083] Therefore, reference Fig.13 and Fig.14 As an optional embodiment, there can be three second adapter protrusions 116, which are evenly spaced around the circumference of the adapter 11; there can also be three module slots 213, which are evenly spaced around the circumference of the inner wall of the module connector 21. In this way, while ensuring the connection reliability between the adapter 11 and the module connector 21, the difficulty of assembly will not be increased too much, and the evenly spaced arrangement can ensure that the metering component 100 is evenly stressed during assembly, thereby ensuring the overall service life of the metering component 100 to a certain extent.
[0084] like Fig.16As shown, according to an optional embodiment of the present invention, the module slot 213 includes a positioning slot 2131 and a limiting slot 2132; in one module slot 213: the positioning slot 2131 and the limiting slot 2132 are arranged in the circumferential direction of the module joint, and the positioning slot 2131 and the limiting slot 2132 together constitute the second rotation channel 214; and along the arrangement direction of the adapter 11 and the metering module 2, the width of the positioning slot 2131 is greater than the width of the limiting slot 2132 (i.e. Fig.16 The distance indicated at a is greater than the distance indicated at b), the positioning groove 2131 constitutes a second alignment portion; the adapter 11 is configured to be able to rotate in the second rotation channel 214 so that each second adapter protrusion 116 is respectively engaged with the limiting groove 2132 corresponding to the second adapter protrusion 116.
[0085] In this embodiment, when the metering component 100 needs to be assembled, the module joint 21 and the adapter 11 are first moved closer to each other along the first direction, and the multiple second adapter protrusions 116 are respectively extended into the multiple positioning grooves 2131. At this time, the metering component 100 is in the first state, and then the adapter 11 is rotated relative to the module joint 21 in the second rotation channel 214 until each second adapter protrusion 116 is respectively inserted into the limiting groove 2132 corresponding to the second adapter protrusion 116, that is, the metering component 100 is in the second state.
[0086] Therefore, the arrangement of the module slot including the positioning slot 2131 and the limiting slot 2132 facilitates the switching of the metering component 100 between the first state and the second state, thereby improving the efficiency of assembly and disassembly of the metering component 100.
[0087] like Fig.12 As shown, according to an optional embodiment of the present invention, the module slot 213 passes through the side wall of the module connector 21 , and a reinforcement portion 215 is provided at one end of the module connector 21 close to the adapter 11 , and the reinforcement portion 215 is arranged around the circumference of the module connector 21 .
[0088] Among them, an annular flange can be set at the outermost end of the air outlet of the metering module 2 (that is, the module joint 21), and the annular flange protrudes in the radial direction of the metering module 2. The annular flange constitutes a reinforcing portion 215. The setting of the reinforcing portion 215 can enhance the strength of the module joint 21, thereby ensuring the overall strength of the metering component 100 when the module joint 21 and the adapter 11 are assembled.
[0089] In this embodiment, since the module slot 213 passes through the outer wall of the module connector 21, the module slot 213 can be suitable for the second adapter protrusions 116 of different heights protruding in the radial direction of the adapter 11, and during assembly, it can be more intuitively observed and confirmed whether multiple second adapter protrusions 116 are all inserted into the module slots 213 corresponding to themselves.
[0090] refer to Fig.14 According to an optional embodiment of the present invention, the size of each second transfer protrusion 116 is different (ie Fig.14 The size of each positioning groove 2131 is different (as shown at W between the two arc arrows); in any set of corresponding second adapter protrusions 116 and module slots 213: the second adapter protrusion 116 is detachably engaged with the module slot 213.
[0091] In the present embodiment, each second transfer protrusion 116 can only extend into a positioning groove 2131 that matches its own size. If a second transfer protrusion 116 wants to extend into a positioning groove 2131 whose size corresponds to that of other module protrusions 211, the second transfer protrusion 116 cannot pass through the positioning groove 2131. Therefore, only when each second transfer protrusion 116 corresponds to the positioning groove 2131 that matches its own size, multiple second transfer protrusions 116 can respectively extend into the positioning grooves 2131 corresponding to the size of the second transfer protrusion 116, thereby finally realizing the switching of the metering component 100 from the first state to the second state.
[0092] It is easy to understand that each second transfer protrusion 116 can also only be inserted into one limiting groove 2132 that matches its own size.
[0093] The purpose of this arrangement is to ensure that the plurality of second adapter protrusions 116 can simultaneously and respectively enter the positions of the plurality of module slots 213 corresponding to their own sizes, and the positions are unique; that is, the adapter 11 can only be engaged with the module connector 21 from one position, thereby achieving complete assembly of the metering component 100.
[0094] Therefore, this setting method of the present embodiment can play a fool-proof role, confirm the connection position of the adapter 11 and the module connector 21, and ensure the correct relative position of the adapter 11 and the module connector 21 after snap-in, thereby improving the overall assembly efficiency of the metering component 100.
[0095] refer to Figures 10 to 12 ,as well as Fig.15 As an optional embodiment of the present utility model, the metering component 100 also includes a second sealing ring 4, and the outer wall of the adapter 11 is also provided with a second sealing groove 117 for installing the second sealing ring 4. Along the arrangement direction of the adapter and the metering module (that is, the first direction mentioned above), the second sealing groove 117 is located on the side of the second adapter protrusion 116 away from the adapter body 12.
[0096] In this embodiment, when the inner wall of the module joint 21 is sleeved on the outer wall of the adapter 11, the second sealing ring 4 can seal the gap between the inner and outer walls of the two in the circumferential direction of the adapter 11, thereby ensuring the sealing of the connection between the module joint 21 and the adapter 11.
[0097] In addition, since the multiple second adapter protrusions 116 need to be respectively inserted into the multiple module slots 213 along the radial direction of the module joint 21 during assembly, if the adapter 11 is too inserted into the module joint 21 (i.e., the air outlet of the metering module), it will be inconvenient during assembly. Therefore, the second sealing groove 117 is arranged on the side of the second adapter protrusion 116 away from the adapter body 12, that is, the depth of the second sealing groove 117 inserted into the module joint 21 during assembly is deeper than the depth of the second adapter protrusion 116 inserted into the module joint 21. Therefore, the position of the second adapter protrusion 116 during assembly can be closer to the opening of the air outlet, that is, close to the outside, so as to improve the convenience of assembly.
[0098] The embodiment of the utility model further provides a gas metering device, which includes any one of the above-mentioned metering components 100.
[0099] The beneficial effects of the gas metering device are the same as those of any of the above-mentioned metering components 100. While ensuring the reliability of the connection between the module connector 21 and the adapter 1, they can also avoid the operator's hands being scratched by the metal retaining spring during assembly, thereby reducing safety hazards during the assembly process.
[0100] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A metering component, characterized in that: include: The adapter is provided with an adapter card connection mechanism; as well as A metering module, wherein the air outlet of the metering module constitutes a module joint, the module joint is sleeved on the outer wall of the adapter, the inner wall of the module joint is provided with a module clamping mechanism, and the module clamping mechanism is detachably clamped with the adapter clamping mechanism.
2. The metering assembly according to claim 1, characterized in that The adapter comprises an adapter body and an adapter joint, the adapter clamping mechanism is arranged on the adapter joint, and the module joint is sleeved on the outer wall of the adapter joint; the adapter clamping mechanism has a plurality of first alignment portions, the module clamping mechanism has a plurality of second alignment portions, and the metering component is configured to be switchable between a first state and a second state by rotation; when the metering component is in the first state, a plurality of the first alignment portions correspond to a plurality of the second alignment portions in a one-to-one manner; when the metering component is in the second state, the module clamping mechanism is clamped with the adapter clamping mechanism.
3. The metering assembly according to claim 2, characterized in that The outer wall of the adapter has a first protrusion protruding in the radial direction of the adapter, and the first protrusion extends along the circumferential direction of the adapter. The adapter includes a first clamping portion, and the first clamping portion is located at an end of the adapter away from the adapter body. The first clamping portion has a plurality of first transfer protrusions protruding in the radial direction of the adapter, and the plurality of first transfer protrusions are arranged at intervals around the circumference of the first clamping portion, and an avoidance groove is formed between any two adjacent first transfer protrusions. Along the arrangement direction of the adapter and the metering module, a first slot is formed between each of the first adapter protrusions and the first protrusions; The inner wall of the module joint is provided with a plurality of module protrusions for engaging with the plurality of first card grooves, the plurality of module protrusions are arranged at intervals around the circumference of the inner wall of the module joint, and each of the module protrusions is arranged to protrude in the radial direction of the module joint, the plurality of module protrusions are arranged in a one-to-one correspondence with the plurality of avoidance grooves, and the plurality of module protrusions are arranged in a one-to-one correspondence with the plurality of first card grooves, the plurality of module protrusions are configured to be able to enter the first rotation channel between the first card connection portion and the first protrusion through the plurality of avoidance grooves respectively, the first rotation channel extends along the circumferential direction of the adapter, the plurality of first card grooves are distributed at intervals around the extension direction of the first rotation channel, and the module joint is configured to be able to rotate along the first rotation channel so that each of the module protrusions is respectively engaged with the first card groove corresponding to the module protrusion; The first protrusion, the first rotation channel, the plurality of first clamping grooves, the plurality of first transfer protrusions, and the plurality of avoidance grooves together constitute the transfer clamping mechanism, and each of the avoidance grooves constitutes one of the first alignment portions; A plurality of the module protrusions constitute the module clamping mechanism, and each of the module protrusions constitutes one of the second alignment portions.
4. The metering assembly according to claim 3, characterized in that The size of each of the avoidance grooves is different, and the size of each of the module protrusions is different; In any set of the avoidance grooves and the module protrusions corresponding to each other: the module protrusion is configured to be able to enter the first rotation channel between the first clamping portion and the first protrusion through the avoidance groove.
5. The metering assembly according to claim 3 or 4, characterized in that: The inner wall of the module joint is also provided with a limiting boss protruding in the radial direction of the module joint. Along the arrangement direction of the adapter and the metering module, the limiting boss is located on the side of the module protrusion away from the opening of the air outlet. The limiting boss is configured to be able to abut against the side edge of the first adapter protrusion to limit the circumferential rotation of the module joint relative to the adapter around the module joint.
6. The metering assembly according to claim 2, characterized in that The outer wall of the adapter is provided with a plurality of second adapter protrusions, and the plurality of second adapter protrusions are arranged at intervals around the circumference of the adapter, and each of the second adapter protrudes in the radial direction of the adapter; the inner wall of the module joint is provided with a plurality of module slots for engaging with the plurality of second adapter protrusions, and each of the module slots is recessed in the radial direction of the adapter, and the plurality of module slots are arranged at intervals around the circumference of the module joint, and the plurality of module slots are arranged in one-to-one correspondence with the plurality of second adapter protrusions, and the plurality of second adapter protrusions constitute the adapter engaging mechanism, and each of the second adapter protrusions constitutes the first alignment portion; the plurality of module slots constitute the module engaging mechanism.
7. The metering assembly according to claim 6, characterized in that The module slot includes a positioning slot and a limiting slot; In one of the module slots: the positioning groove and the limiting groove are arranged around the circumferential direction of the module joint, and the positioning groove and the limiting groove together constitute a second rotation channel; and along the arrangement direction of the adapter and the metering module, the width of the positioning groove is greater than the width of the limiting groove, and the positioning groove constitutes the second alignment portion; The adapter is configured to be able to rotate in the second rotation channel so that each of the second adapter protrusions is respectively engaged with the limiting groove corresponding to the second adapter protrusion.
8. The metering assembly according to claim 7, characterized in that The size of each of the second transfer protrusions is different, and the size of each of the positioning grooves is different; In any set of the second transfer protrusions and the module slots corresponding to each other: the second transfer protrusion is configured to be able to enter the second rotation channel through the positioning groove.
9. The metering assembly according to any one of claims 6 to 8, characterized in that: The module slot passes through the side wall of the module joint. A reinforcement portion is provided at one end of the module joint close to the adapter. The reinforcement portion is arranged around the circumference of the module joint.
10. A gas metering device, characterized in that: Comprising a metering component as described in any one of claims 1-9.