Pin type coil framework and gas valve

Abstract

The utility model provides a pin type coil framework and a gas valve, and belongs to the technical field of coil frameworks. The coil framework comprises a framework main body and a contact pin, the framework main body is provided with a mounting channel, and the mounting channel is provided with a first step surface and a second step surface in the axial direction; the contact pin comprises a contact pin main body, and an abutting part and an elastic piece which are arranged on the contact pin main body, the abutting part and the elastic piece are arranged in a protruding manner relative to the contact pin main body, and the elastic piece can be compressed under the action of external force so as to reduce the height of the elastic piece protruding out of the contact pin main body; the pin body is inserted into the mounting channel in the axial direction of the mounting channel, the abutting portion is in limiting fit with the first step face in the first direction, and the elastic piece is in limiting fit with the second step face in the second direction. According to the coil framework, the coil framework comprises the framework body and the contact pin, the production process of the coil framework is simplified, the production efficiency and yield of the coil framework are accordingly improved, and the connection stability of the contact pin and the framework body is guaranteed through the abutting part and the elastic piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of coil skeletons, and in particular relates to a pin-type coil skeleton and a gas valve. Background Art

[0002] In the production process of the coil skeleton of the existing household electromagnetic gas emergency shut-off valve, the metal sheet is first placed in the corresponding mold manually, and then the coil skeleton is formed by integral injection molding. The integral injection molding material gradually forms a stable connection with the metal sheet during the molding process, so that the overall structure of the coil skeleton finally formed is stable.

[0003] Since this production method requires manual placement of metal sheets one by one in the specified position of the mold according to requirements before the one-piece injection molding operation can be performed, the operation is cumbersome. Therefore, the production efficiency of the coil skeleton is low, which affects the output of the coil skeleton. Utility Model Content

[0004] The purpose of this application is to provide a pin-type coil skeleton and a gas valve to solve the above-mentioned technical problems existing in the prior art.

[0005] This application is implemented by:

[0006] In the first aspect, an embodiment of the present application provides a pin-type coil skeleton, comprising a skeleton body and a pin, the skeleton body having an installation channel, the installation channel having a first step surface and a second step surface located in its axial direction; the pin comprises a pin body and a stop portion and an elastic member arranged on the pin body, the stop portion and the elastic member are both protruding relative to the pin body, and the elastic member can be compressed under the action of external force to reduce the height of the elastic member protruding from the pin body; the pin body is inserted into the installation channel along the axial direction of the installation channel, the stop portion is limitedly cooperated with the first step surface along a first direction, and the elastic member is limitedly cooperated with the second step surface along a second direction, the first direction is the same as the insertion direction of the pin body, and the second direction is opposite to the insertion direction of the pin body.

[0007] In a second aspect, an embodiment of the present application provides a gas valve, comprising the pin-type coil skeleton provided in the embodiment of the first aspect.

[0008] The beneficial effects of this application are:

[0009] In the present application, a coil skeleton is provided including two parts, a skeleton body and a plug pin. The skeleton body and the plug pin are prefabricated in advance and then assembled uniformly, which simplifies the coil skeleton production process, thereby improving the production efficiency and output of the coil skeleton; an installation channel is provided in the skeleton body, a first step surface is provided to cooperate with the stop portion of the plug pin, and a second step surface is provided to cooperate with the elastic part of the plug pin to prevent the plug pin from moving axially along the installation channel, thereby limiting the position of the plug pin in the installation channel, fixing the plug pin in the installation channel, and ensuring the connection stability between the plug pin and the skeleton body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 is a schematic structural diagram of a coil skeleton provided in some embodiments of the present application from a first perspective;

[0012] Figure 2 This application is about Figure 1 Detailed view of point A;

[0013] Figure 3 is a schematic structural diagram of a coil skeleton from a second perspective provided in some embodiments of the present application;

[0014] Figure 4 This application is about Figure 3 Detail of point B;

[0015] Figure 5 is a partial cross-sectional view of a coil skeleton provided in some embodiments of the present application;

[0016] Figure 6 This application is about Figure 5 Detailed view of point C;

[0017] Figure 7 is a schematic structural diagram of a skeleton body from a first perspective provided in some embodiments of the present application;

[0018] Figure 8 is a schematic structural diagram of a skeleton body from a second perspective provided in some embodiments of the present application;

[0019] Fig. 9 is a schematic diagram of the structure of a pin from a first perspective provided in some embodiments of the present application;

[0020] Fig.10is a schematic structural diagram of a pin from a second perspective provided in some embodiments of the present application;

[0021] Fig.11 It is a schematic diagram of the structure of the pin strip provided in some embodiments of the present application.

[0022] In the figure: 100-skeleton body, 110-installation channel, 111-first step surface, 112-second step surface, 113-first opening, 114-inlet end, 115-outlet end, 116-guide surface, 200-pin, 210-pin body, 211-installation hole, 220-stop portion, 230-elastic member. DETAILED DESCRIPTION

[0023] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0024] The present application embodiment provides a pin-type coil skeleton, referring to Figures 1 to 11 As shown, the coil skeleton includes two parts: a skeleton body 100 and a plug pin 200. The two parts are prefabricated in advance, and the plug pin 200 is installed to the skeleton body 100 later to complete the assembly of the coil skeleton.

[0025] The skeleton body 100 has a mounting channel 110, and the mounting channel 110 is used to mount the plug pin 200. After the plug pin 200 is mounted in the mounting channel 110, it is necessary to ensure the connection stability between the plug pin 200 and the skeleton body 100 to prevent the plug pin 200 from falling out of the mounting channel 110. To this end, the mounting channel 110 has a first step surface 111 and a second step surface 112 located in its axial direction. The first step surface 111 and the second step surface 112 are both used to cooperate with the plug pin 200 to limit the position of the plug pin 200 in the axial direction of the mounting channel 110, thereby preventing the plug pin 200 from falling out of the mounting channel 110.

[0026] It can be understood that the first step surface 111 and the second step surface 112 are caused by the different sizes in the installation channel 110. The step surface appears due to the change in the cross-sectional size in the installation channel 110.

[0027] The plug pin 200 includes a plug pin body 210 and a stopper 220 and an elastic member 230 disposed on the plug pin body 210. The stopper 220 and the elastic member 230 are both disposed protruding relative to the plug pin body 210, so as to be compatible with the first step surface 111 and the second step surface 112. Moreover, the elastic member 230 can be compressed under the action of an external force to reduce the height of the elastic member 230 protruding relative to the plug pin body 210.

[0028] The pin body 210 is inserted into the installation channel 110 along the axial direction of the installation channel 110. After the pin body 210 is inserted into place, the stop portion 220 is limited and matched with the first step surface 111 along the first direction to limit the movement of the pin body 210 along the first direction. The elastic member 230 is limited and matched with the second step surface 112 along the second direction to limit the movement of the pin body 210 along the second direction. The first direction is set in the opposite direction to the second direction. The first direction is the same as the insertion direction of the pin body 210, and the second direction is opposite to the insertion direction of the pin body 210. Figure 5 and Figure 6 As shown, the first direction is the direction indicated by the solid arrow, and the second direction is the direction indicated by the dotted arrow. That is to say, after the pin body 210 is inserted into the designated position of the installation channel 110, the stop portion 220 will limit the pin body 210 from being further inserted, and the elastic member 230 will limit the pin body 210 from being withdrawn. The stop portion 220 and the elastic member 230 cooperate with each other to limit the axial movement of the pin body 210 along the installation channel 110, thereby fixing the pin body 210 in the installation channel 110, so that the pin 200 is stably connected to the skeleton body 100.

[0029] The first step surface 111 is located on the moving path of the stop portion 220. When the pin body 210 is inserted into the installation channel 110, the stop portion 220 abuts against the first step surface 111. The first step surface 111 limits the stop portion 220 and restricts the stop portion 220 from continuing to move. Figure 3 and Figure 4 As shown. With the insertion of the pin body 210, the elastic member 230 moves with the pin body 210 in the installation channel 110. Since the elastic member 230 is configured to limit the second step surface 112 along the second direction, the cross-sectional size of the installation channel 110 on both sides of the second step surface 112 increases along the insertion direction. Before the elastic member 230 crosses the second step surface 112, the elastic member 230 moves in the smaller portion of the installation channel 110, and the elastic member 230 is compressed. After the elastic member 230 crosses the second step surface 112, the elastic member 230 enters the larger portion of the installation channel 110, and the compression effect of the installation channel 110 on the elastic member 230 is reduced or disappears. The elastic member 230 rebounds, and the height of the elastic member 230 protruding from the pin body 210 increases. Along the second direction, that is, the direction of pulling out the pin body 210, the elastic member 230 abuts against the second step surface 112 to limit the movement of the pin 200. Refer to Figure 1 and Figure 2 shown.

[0030] During the movement of the elastic member 230 in the installation channel 110, the elastic member 230 is restricted by the inner wall of the installation channel 110 and is compressed. At the same time, the compressed elastic member 230 can also give a reverse force to the inner wall of the installation channel 110. The elastic member 230 is always in close contact with the installation channel 110, thereby ensuring that during the insertion process of the pin 200, there is no shaking between the pin body 210 and the skeleton body 100 in the compression direction of the elastic member 230, and the pin body 210 can be stably inserted into the installation channel 110.

[0031] In the present application, the plug pin 200 and the skeleton body 100 are prefabricated in advance, and the plug pin 200 is subsequently directly inserted into the installation channel 110 of the skeleton body 100 to complete the connection between the plug pin 200 and the skeleton body 100, and complete the assembly of the coil skeleton. Since the plug pin 200 is prefabricated in advance and the skeleton body 100 is injection molded in advance, compared with the production steps of the coil skeleton in the prior art, in which the plug pin 200 is placed at a specified position and then integrally injection molded, the production steps of the coil skeleton provided in the embodiment of the present application are simpler, the process is more convenient, and the production efficiency is higher. Correspondingly, the output can also be improved.

[0032] The abutting portion 220 and the elastic member 230 may be arranged to protrude relative to the insertion pin body 210 in the thickness direction of the insertion pin body 210 , or may be arranged to protrude relative to the insertion pin body 210 in the width direction of the insertion pin body 210 .

[0033] In some embodiments, along the insertion direction of the pin 200, the second step surface 112 can be located before the first step surface 111. In other embodiments, the second step surface 112 can also be located behind the first step surface 111. The specific setting positions of the two step surfaces are not specifically limited in this application.

[0034] In some embodiments, the elastic member 230 may include a spring and a limiting block, the spring is connected between the limiting block and the pin body 210, and when the spring is compressed, the elastic member 230 is compressed.

[0035] In some preferred embodiments, the elastic member 230 can be directly a sheet structure, which is easier to process and has a lower cost. Specifically, along the axial direction of the installation channel 110, the end of the elastic member 230 away from the second step surface 112 is fixed to the plug body 210, and the end surface close to the second step surface 112 extends toward the outside of the plug body 210 to cooperate with the second step surface 112. Figure 2 , Figure 6 and Fig. 9As shown. During the process of inserting the pin 200 into the installation channel 110, the end of the elastic member 230 connected to the pin body 210 enters the installation channel 110 first, which is more conducive to the installation channel 110 to compress the elastic member 230. The end of the elastic member 230 close to the second step surface 112 is higher than the protrusion distance of the pin body 210, and the end is stopped by the second step surface 112, and the limiting effect is better.

[0036] Further preferably, the pin body 210 has a mounting hole 211, and the elastic member 230 is connected to the side wall of the mounting hole 211, and the elastic member 230 can be compressed into the mounting hole 211. The elastic member 230 is completely compressed into the mounting hole 211, so that the surface of the pin body 210 can be kept smooth, and it is easier for the pin body 210 to move in the mounting channel 110. At the same time, the processing steps of the elastic member 230 can be simplified. After the mounting hole 211 is opened on the pin body 210, the structure of the corresponding part of the pin body 210 within the range of the mounting hole 211 can form the elastic member 230.

[0037] After the pin 200 is inserted into the installation channel 110, in order to facilitate observation of whether the elastic member 230 is installed in place and whether the pin 200 is firmly connected to the skeleton body 100, a first opening 113 communicating with the external environment can be provided in the installation channel 110. Figure 7 and Figure 8 As shown, the first opening 113 exposes the inside of the installation channel 110 to the outside, which is convenient for the operator to observe. At the same time, due to the provision of the first opening 113, the size of the installation channel 110 is enlarged, so the second step surface 112 can be one of the side walls of the first opening 113, and the first opening 113 provides an activity space for the elastic member 230 to rebound. In addition, if it is necessary to remove the plug pin 200 from the installation channel 110, the first opening 113 provides an operating space for the operator, and the operator can directly compress the elastic member 230 through the first opening 113, so that the elastic member 230 re-enters the installation channel 110 and follows the plug pin body 210 to exit the installation channel 110.

[0038] The stopper 220 and the elastic member 230 are both protruded relative to the pin body 210 so as to cooperate with the first step surface 111 and the second step surface 112. In some preferred embodiments, the protruding direction of the stopper 220 relative to the pin body 210 is opposite to the protruding direction of the elastic member 230 relative to the pin body 210. The protruding directions of the two are opposite, which improves the position stability of the pin 200 in the installation channel 110 and further avoids the pin 200 from accidentally moving.

[0039] In some embodiments of the present application, the first step surface 111 is disposed at the inlet end 114 of the installation channel 110. Figure 8During the process of inserting the pin 200 into the installation channel 110, the stop portion 220 does not need to enter the installation channel 110, which can improve the smoothness of the movement of the pin body 210 in the installation channel 110. In addition, since there is no need to consider the existence of the stop portion 220, and the elastic member 230 that can enter the installation channel 110 can be compressed, the space size of the installation channel 110 can be set as close as possible to the size of the pin body 210, thereby improving the fixing effect of the pin body 210 in the circumferential direction of the installation channel 110.

[0040] In some preferred embodiments, along the axial direction of the installation channel 110, the installation channel 110 has an inlet end 114 and an outlet end 115, and the distance between the second step surface 112 and the inlet end 114 of the installation channel 110 is smaller than the distance between the second step surface 112 and the outlet end 115. Since the first step surface 111 is disposed at the inlet end 114 of the installation channel 110, the second step surface 112 is disposed closer to the first step surface 111. The closer the second step surface 112 is to the first step surface 111, the shorter the distance that the elastic member 230 passes through in the installation channel 110, and the better the operator can control the insertion of the plug pin 200. At the same time, the distance between the second step surface 112 and the first step surface 111 needs to correspond to the distance between the stop portion 220 and the elastic member 230, so that the plug pin 200 can be limited in the axial direction of the installation channel 110. The closer the second step surface 112 is to the first step surface 111, the shorter the distance between the two, the easier it is to control the processing error, and the higher the precision.

[0041] The inlet end 114 of the installation channel 110 may also be provided with a guide surface 116. Along the insertion direction of the plug 200, the cross-sectional size of the installation channel 110 corresponding to the guide surface 116 gradually decreases. The guide member guides the plug 200 to be inserted into the installation channel 110. Figure 8 shown.

[0042] Further preferably, two stop portions 220 are provided, and the two stop portions 220 are respectively located on both sides of the width of the pin body 210, so that the overall structure of the pin 200 is balanced and the limiting effect is improved.

[0043] In the actual assembly process of the coil skeleton, the pin 200 is generally made of metal, and multiple pins 200 are connected side by side to form a pin strip. The pin 200 is provided with a shearing edge. During assembly, the pin 200 is directly inserted into the installation channel 110, and then the pin 200 is cut along the shearing edge. Multiple pins 200 are arranged side by side, which can improve the assembly efficiency of the pin 200. Further preferably, an automatic assembly machine can be introduced to insert the pin 200 into the installation channel 110, which greatly improves the production efficiency and capacity of the coil skeleton and also reduces labor costs.

[0044] An embodiment of the present application also provides a gas valve, comprising the pin-type coil skeleton provided in any of the above embodiments.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pin-type coil skeleton, characterized in that: include: A skeleton body (100), the skeleton body (100) having a mounting channel (110), the mounting channel (110) having a first step surface (111) and a second step surface (112) located in the axial direction thereof; An insertion pin (200), the insertion pin (200) comprising an insertion pin body (210) and a stop portion (220) and an elastic member (230) arranged on the insertion pin body (210), the stop portion (220) and the elastic member (230) both being arranged to protrude relative to the insertion pin body (210), and the elastic member (230) being capable of being compressed under the action of an external force to reduce the height of the elastic member (230) protruding from the insertion pin body (210); The pin body (210) is inserted into the mounting channel (110) along the axial direction of the mounting channel (110), the stop portion (220) is limitedly engaged with the first step surface (111) along a first direction, and the elastic member (230) is limitedly engaged with the second step surface (112) along a second direction, the first direction is the same as the insertion direction of the pin body (210), and the second direction is opposite to the insertion direction of the pin body (210).

2. The pin-type coil frame according to claim 1, characterized in that: Along the axial direction of the installation channel (110), the end of the elastic member (230) away from the second step surface (112) is fixed to the plug pin body (210), and the end surface close to the second step surface (112) extends toward the outside of the plug pin body (210) to cooperate with the second step surface (112) in a limiting manner.

3. The pin-type coil frame according to claim 2, characterized in that: The pin body (210) has a mounting hole (211), the elastic member (230) is connected to a side wall of the mounting hole (211), and the elastic member (230) can be compressed into the mounting hole (211).

4. The pin-type coil frame according to claim 1, characterized in that: The installation channel (110) has a first opening (113) communicating with the external environment, and the second step surface (112) is a side wall of the first opening (113).

5. The pin-type coil skeleton according to claim 1, characterized in that: The protruding direction of the stop portion (220) relative to the insertion pin body (210) is opposite to the protruding direction of the elastic member (230) relative to the insertion pin body (210).

6. The pin-type coil frame according to claim 1, characterized in that: The first step surface (111) is arranged at an inlet end (114) of the installation channel (110).

7. The pin-type coil frame according to claim 6, characterized in that: Along the axial direction of the mounting channel (110), the distance between the second step surface (112) and the inlet end (114) of the mounting channel (110) is smaller than the distance between the second step surface (112) and the outlet end (115) of the mounting channel (110).

8. The pin-type coil frame according to claim 1, characterized in that: The inlet end (114) of the installation channel (110) is provided with a guide surface (116), and along the insertion direction of the plug pin (200), the cross-sectional size of the installation channel (110) corresponding to the guide surface (116) gradually decreases.

9. The pin-type coil skeleton according to claim 1, characterized in that: There are two stop portions (220), and the two stop portions (220) are respectively located on two sides of the width of the insertion pin body (210).

10. A gas valve, characterized in that: It comprises the pin-type coil frame as described in any one of claims 1 to 9.

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