Runner assembly and injection valve

Abstract

The utility model provides a runner assembly and an injection valve, the runner assembly comprises: a runner body, which is provided with a first channel and an accommodating cavity, the accommodating cavity is provided with a first side wall and a second side wall which are oppositely distributed; the lead-in block is contained in the containing cavity and detachably connected with the runner body, and the lead-in block is provided with a second channel communicating with the first channel; the abutting piece is arranged on the runner body, one end of the abutting piece penetrates through the first side wall and abuts against the guide-in block, and the abutting piece is used for abutting against the guide-in block to the second side wall; and the first connector is arranged on the guide-in block, and the first connector communicates with the second channel. A medium flow channel of the flow channel assembly is divided into a first channel and a second channel, the medium flow channel is designed in a segmented mode, and therefore the length of the medium flow channel is relatively short, and the medium flow channel is a short channel; and moreover, the guide-in block and the runner body can be detached and separated during cleaning, and the first channel and the second channel are independently cleaned, so that the runner is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of injection valve technology, and in particular to a flow channel assembly and an injection valve. Background Technology

[0002] An injection valve is a device used to control the flow of liquids or gases. When a medium enters the injection valve, the valve controls the flow of the medium, and then the medium is ejected through the flow channel assembly.

[0003] In related technologies, the flow channel assembly includes a flow channel body, a nozzle, and a Luer first connector. The flow channel body has a medium flow channel, and the two ends of the medium flow channel are respectively connected to the nozzle and the Luer first connector. The medium flows into the medium flow channel from the Luer first connector and is ejected from the nozzle. However, since the medium flow channel is a continuous, long channel, it is not easy to clean. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a flow channel component and a jet valve, which aims to solve the problem that the medium flow channel of the flow channel body is not easy to clean in the related art.

[0005] To solve the above-mentioned technical problems, the first aspect of this utility model provides a flow channel assembly, comprising:

[0006] The flow channel body is provided with a first channel and a receiving cavity, the receiving cavity having a first sidewall and a second sidewall that are relatively distributed;

[0007] An inlet block is housed within the receiving cavity and is detachably connected to the flow channel body. The inlet block is provided with a second channel communicating with the first channel.

[0008] A stopper, disposed on the flow channel body and with one end penetrating the first sidewall and abutting against the inlet block, the stopper being used to abut the inlet block against the second sidewall; and...

[0009] A first connector is disposed on the inlet block, and the first connector is in communication with the second channel;

[0010] The flow channel assembly is provided with a medium flow channel, and the first channel and the second channel are part of the medium flow channel.

[0011] Optionally, the second channel extends through opposite sides of the inlet block;

[0012] The inlet block is further provided with a third channel that connects the first connector and the second channel respectively. The third channel is part of the medium flow channel. The third channel and the second channel have an angle between them, and the third channel is located between the two ends of the second channel.

[0013] Optionally, the inlet block has a mounting cavity communicating with the third channel, the mounting cavity being located at the end of the third channel away from the second channel, and the first connector being located inside the mounting cavity.

[0014] Optionally, the flow channel assembly further includes a second connector disposed in the inlet block, the second connector being located within the mounting cavity, and the first connector and the second connector being detachably connected.

[0015] Optionally, the flow channel body has a bottom side and a top side that are relatively distributed, the first channel and the second channel are inclined relative to the bottom side of the flow channel body, and the first channel and the second channel are coaxially arranged.

[0016] Optionally, a heat insulation column is provided on the top side of the flow channel body.

[0017] Optionally, the guide block has a first positioning hole on the side near the first sidewall, and one end of the abutment is embedded in the first positioning hole;

[0018] The first positioning hole is connected to the second channel, and the abutment is in sealed contact with the inner wall of the first positioning hole.

[0019] Optionally, the second sidewall is provided with a second positioning hole, and the guide block is provided with a positioning part on the side near the second sidewall, the positioning part being embedded in the positioning hole;

[0020] The second positioning hole connects to the first channel, and the second channel passes through the positioning part.

[0021] Optionally, the flow channel body is provided with a third connector, which is connected to the end of the first channel away from the second channel, and the third connector is used for detachable connection with the nozzle.

[0022] A second aspect of this invention provides an injection valve, comprising a valve body and a flow channel assembly as described above, the flow channel assembly being connected to the valve body.

[0023] Compared with related technologies, the flow channel assembly and injection valve of this utility model have the following advantages: Since the inlet block and the flow channel body are detachably connected, and a first channel is provided on the flow channel body and a second channel is provided on the inlet block, the medium flow channel of the flow channel assembly is divided into a first channel and a second channel. This segmented design of the medium flow channel results in a relatively short length, making it a short channel. Furthermore, during cleaning, the inlet block and the flow channel body can be disassembled and separated to clean the first and second channels separately, thus facilitating channel cleaning. In addition, the short channel reduces the difficulty of deep hole machining, thereby facilitating the shaping of the medium flow channel. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the flow channel assembly provided in an embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of the flow channel assembly provided in an embodiment of this utility model;

[0027] Figure 3 This is an exploded view of the flow channel assembly provided in this embodiment of the utility model.

[0028] In the accompanying drawings, the reference numerals indicate: 1. Flow channel body; 11. First channel; 12. Receiving cavity; 121. First sidewall; 122. Second sidewall; 13. Second positioning hole; 2. Inlet block; 21. Second channel; 22. Third channel; 23. Mounting cavity; 24. Positioning part; 25. First positioning hole; 3. Abutment; 4. First connector; 5. Second connector; 6. Heat insulation column; 7. Third connector. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0032] Example:

[0033] This utility model provides an injection valve, including a valve body and a flow channel assembly, the flow channel assembly being connected to the valve body. The injection valve can be a piezoelectric injection valve.

[0034] Please see Figure 1 , Figure 2 and Figure 3 The flow channel assembly includes a flow channel body 1, an inlet block 2, a stopper 3, and a first connector 4. The flow channel body 1 has a first channel 11 and a receiving cavity 12. The receiving cavity 12 has a first sidewall 121 and a second sidewall 122 that are relatively distributed. The inlet block 2 is housed in the receiving cavity 12 and is detachably connected to the flow channel body 1. The inlet block 2 has a second channel 21 that communicates with the first channel 11. The stopper 3 is disposed on the flow channel body 1 and one end passes through the first sidewall 121 and abuts against the inlet block 2. The stopper 3 is used to abut the inlet block 2 against the second sidewall 122. The first connector 4 is disposed on the inlet block 2 and communicates with the second channel 21. The flow channel assembly has a medium flow channel, and the first channel 11 and the second channel 21 are part of the medium flow channel.

[0035] Because the inlet block 2 and the channel body 1 are detachably connected, and a first channel 11 is provided on the channel body 1 and a second channel 21 is provided on the inlet block 2, the medium flow channel of the flow channel assembly is divided into a first channel 11 and a second channel 21. This segmented design of the medium flow channel results in a relatively short channel length. Furthermore, during cleaning, the inlet block 2 and the channel body 1 can be disassembled and separated to clean the first channel 11 and the second channel 21 separately, facilitating channel cleaning. In addition, the short channel design reduces the difficulty of deep hole machining, thus facilitating the shaping of the medium flow channel.

[0036] It should be noted that the flow channel body 1 is disposed on the valve body, and the first sidewall 121 and the second sidewall 122 are distributed at intervals along the length of the flow channel body 1; the first channel 11 and the second channel 21 are both through holes, and the first channel 11 and the second channel 21 can be formed by machining. The medium enters the second channel 21 through the first connector 4 and flows out from the first channel 11.

[0037] Please see Figure 2The second channel 21 extends through the opposite sides of the inlet block 2. The opposite sides of the inlet block 2 are spaced apart along the length of the flow channel body 1, making the second channel 21 a through hole for easy processing and cleaning. The inlet block 2 also has a third channel 22 that connects the first connector 4 and the second channel 21 respectively. The third channel 22 is part of the medium flow channel, thus dividing the medium flow channel into the first channel 11, the second channel 21, and the third channel 22, further facilitating the cleaning and processing of the flow channel. The third channel 22 has an included angle with the second channel 21, and the third channel 22 is located between the two ends of the second channel 21, which helps prevent the medium from clogging at the connection between the second channel 21 and the third channel 22, and facilitates the flow of the medium in the third channel 22 into the second channel 21.

[0038] Depending on actual needs, the angle between the third channel 22 and the second channel 21 can be an acute angle, such as 120°. The third channel 22 can be set vertically to facilitate the flow of the medium within the third channel 22.

[0039] Please see Figure 2 and Figure 3 The guide block 2 has a mounting cavity 23 communicating with the third channel 22. The mounting cavity 23 is located at the end of the third channel 22 away from the second channel 21, and the first connector 4 is located inside the mounting cavity 23. The mounting cavity 23 facilitates the insertion of the first connector 4 and also reduces the length of the third channel 22, making it easier to process. The diameter of the mounting cavity 23 is larger than the diameter of the third channel 22. During processing, the mounting cavity 23 is processed first, followed by the copper layer of the third channel 22.

[0040] Please see Figure 1 , Figure 2 and Figure 3 The flow channel assembly also includes a second connector 5 disposed on the inlet block 2. The second connector 5 is located within the mounting cavity 23. The first connector 4 and the second connector 5 are detachably connected, facilitating the replacement of the first connector 4, thereby allowing for the replacement of the first connector 4 with different specifications according to the rubber sleeve. The first connector 4 and the second connector 5 can be Luer connectors, and one of the first connector 4 and the second connector 5 is a male connector, while the other is a female connector.

[0041] Please see Figure 2 The flow channel body 1 has a bottom side and a top side that are relatively distributed. The first channel 11 and the second channel 21 are inclined relative to the bottom side of the flow channel body 1 and are coaxially arranged, so that the second channel 21 and the first channel 11 have a height difference, which is conducive to the flow of the medium in the second channel 21 into the first channel 11. The angle between the first channel 11 and the second channel 21 and the bottom side of the flow channel body 1 is an acute angle, for example, 30°.

[0042] Please see Figure 1 , Figure 2 and Figure 3 A heat insulation column 6 is provided on the top side of the flow channel body 1. Multiple heat insulation columns 6 can be provided and distributed at intervals. The heat insulation columns 6 can prevent heat from the flow channel body 1 from being conducted to the valve body. The heat insulation column 6 can be a ceramic column.

[0043] Please see Figure 2 and Figure 3 The guide block 2 has a first positioning hole 25 on the side near the first sidewall 121. One end of the abutment 3 is embedded in the first positioning hole 25. The first positioning hole 25 ensures the contact stability between the abutment 3 and the guide block 2. The first positioning hole 25 communicates with the second channel 21. The abutment 3 makes sealing contact with the inner wall of the first positioning hole 25, allowing the abutment 3 to block one end of the second channel 21 and prevent the medium from leaking out from the end of the second channel 21 away from the first channel 11. The abutment 3 can be a plug, and the end of the abutment 3 near the guide block 2 is conical. The first positioning hole 25 can also be a conical hole, which helps to improve the contact sealing between the abutment 3 and the guide block 2.

[0044] Please see Figure 2 and Figure 3 The second sidewall 122 is provided with a second positioning hole 13. A positioning part 24 is provided on the side of the guide block 2 near the second sidewall 122, and the positioning part 24 is embedded in the positioning hole. The second positioning hole 13 ensures the contact stability between the positioning part 24 and the flow channel body 1. The second positioning hole 13 connects to the first channel 11, and the second channel 21 passes through the positioning part 24, which facilitates precise alignment between the second channel 21 and the first channel 11. The end of the positioning part 24 near the second sidewall 122 can be a tapered end, and the second positioning hole 13 can be a tapered hole, which improves the contact sealing between the positioning part 24 and the second positioning hole 13, preventing media leakage.

[0045] Please see Figure 1 , Figure 2 and Figure 3 The flow channel body 1 is provided with a third connector 7, which is connected to the end of the first channel 11 away from the second channel 21. The third connector 7 is used to detachably connect to the nozzle, so that the third connector 7 can connect to nozzles of different specifications, thereby improving adaptability.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A runner assembly, characterized by, The flow channel assembly comprises: a flow channel body provided with a first channel and a receiving cavity, the receiving cavity being provided with oppositely distributed first and second side walls; an introduction block accommodated in the receiving cavity and detachably connected with the flow channel body, the introduction block being provided with a second channel in communication with the first channel; a stopper provided on the flow channel body and having one end penetrating through the first side wall and abutting against the introduction block, the stopper being used for abutting the introduction block against the second side wall; and a first connector provided on the introduction block, the first connector being in communication with the second channel; wherein the flow channel assembly is provided with a medium flow channel, and the first channel and the second channel are part of the medium flow channel.

2. The flow channel assembly of claim 1, wherein, The second channel penetrates through opposite sides of the introduction block. The introduction block is further provided with a third channel in communication with the first connector and the second channel respectively, the third channel being part of the medium flow channel, the third channel and the second channel having an included angle therebetween, and the third channel being arranged between two ends of the second channel.

3. The flow channel assembly of claim 2, wherein, The introduction block is provided with a mounting cavity in communication with the third channel, the mounting cavity being located at one end of the third channel away from the second channel, and the first connector being located in the mounting cavity.

4. The flow channel assembly of claim 3, wherein, The flow channel assembly further comprises a second connector arranged on the introduction block, the second connector being located in the mounting cavity, and the first connector and the second connector being detachably connected.

5. The flow channel assembly of claim 1, wherein, The flow channel body is provided with oppositely distributed bottom and top sides, the first channel and the second channel being arranged obliquely relative to the bottom side of the flow channel body, and the first channel and the second channel being coaxially arranged.

6. The flow channel assembly of claim 5, wherein, The top side of the flow channel body is provided with a heat insulation column.

7. The flow channel assembly of claim 1, wherein The introduction block is provided with a first positioning hole on the side close to the first side wall, one end of the stopper being embedded into the first positioning hole. The first positioning hole is in communication with the second channel, and the stopper is in sealing contact with the inner wall of the first positioning hole.

8. The flow channel assembly of claim 1, wherein, The second side wall is provided with a second positioning hole, and the introduction block is provided with a positioning portion on the side close to the second side wall, the positioning portion being embedded into the positioning hole. The second positioning hole is in communication with the first channel, and the second channel penetrates through the positioning portion.

9. The flow channel assembly of claim 1, wherein, The flow channel body is provided with a third connector in communication with one end of the first channel away from the second channel, the third connector being used for detachable connection with a nozzle.

10. A valve for use in a fuel injection system, the valve comprising: The flow channel assembly is connected with a valve body.

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