Filling needle and liquid filling machine

Abstract

The utility model provides a filling needle head and a liquid filling machine, and belongs to the technical field of filling machines. The filling needle head comprises a filtering assembly and a connecting assembly, a limiting ring is fixedly connected with a needle head body, an elastic block is correspondingly arranged in the limiting ring, an injection head is slidably connected with the limiting ring through the elastic block, and the injection head makes contact with the needle head body. Secondly, the filter frame can play a role in filtering filled liquid, the situation that the injection head is blocked by large-particle impurities can be prevented, the injection head is in sliding connection with the limiting ring through the elastic block, the injection head can be conveniently disassembled and assembled in a clamping connection mode, and the injection head is convenient to disassemble and assemble; compared with threaded connection, disassembly and assembly are more convenient, then the injection head is convenient to disassemble, labor force is reduced, meanwhile, the phenomenon that liquid flows automatically in the needle body can be prevented, and therefore practicability is improved.

Description

Technical Field

[0001] The present application relates to the field of filling machines, and in particular to a filling needle and a liquid filling machine. Background Art

[0002] Liquid filling is widely used in various industries such as food, medicine, daily chemicals, oils and fats, and can be used to fill different high-viscosity fluids. For example, a filling needle for a filling machine with Chinese patent application number CN202021667084.1 includes a needle body, a sealing ring is provided on the top of the needle body, the sealing ring includes a fixed ring and a scraper ring, the scraper ring is arranged below the fixed ring, an extrusion section is provided in the middle of the needle body, the extrusion section is hourglass-shaped, an injection head is provided at the bottom of the needle body, a leak-proof ring is provided inside the injection head, and the extrusion section is connected to the injection head by threads. The device is provided with a leak-proof ring on the injection head, which can store the liquid flowing down the inner wall of the needle to prevent it from dripping, and the injection head and the extrusion section are threadedly connected, the injection head can be removed for replacement and cleaning, and the service life of the filling needle can be extended.

[0003] However, the above solution still has certain defects: first, the injection head is connected to the needle body by threads, which is inconvenient to disassemble after long-term use, increasing labor; second, the liquid is prone to flow in the needle body, thereby reducing practicality. Utility Model Content

[0004] In order to make up for the above shortcomings, the present application provides a filling needle and a liquid filling machine, which aims to improve the problem that the injection head and the needle body are connected by threads in the related technology, which is inconvenient to disassemble after long-term use, increases labor, and secondly, it is easy for the liquid to flow in the needle body, thereby reducing practicality.

[0005] In a first aspect, an embodiment of the present application provides a filling needle including a filter assembly and a connection assembly.

[0006] The filter assembly includes a needle body, a filter frame and a check valve, the filter frame is arranged at one end of the needle body, the check valve is arranged on one side of the needle body, the connecting assembly includes a limit ring, an elastic block and an injection head, the limit ring is fixedly connected to the needle body, the elastic block is correspondingly arranged inside the limit ring, the injection head is slidably connected to the limit ring through the elastic block, and the injection head is in contact with the needle body.

[0007] In a specific embodiment, a limiting groove is provided at one end of the needle body.

[0008] In the above implementation process, a limiting groove is provided at one end of the needle body, and the limiting groove can play a limiting role.

[0009] In a specific embodiment, a sealing ring is provided at one end of the needle body, and the injection head is in contact with the sealing ring.

[0010] In the above implementation process, a sealing ring is provided at one end of the needle body, and the provision of the sealing ring can improve the sealing effect between the needle body and the injection head.

[0011] In a specific embodiment, the filter frame includes a frame plate, a filter screen and a limit plate, the filter screen is arranged inside the frame plate, the limit plate is fixedly connected to the frame plate, and the limit plate is in contact with the limit groove.

[0012] In the above implementation process, the filter screen can play a filtering role, which can prevent larger particles of impurities from clogging the injection head.

[0013] In a specific implementation manner, the elastic block includes a fixed block, a curved surface block and a spring, the curved surface block is slidably connected to the fixed block, the spring is arranged inside the fixed block, and the spring is fixedly connected to the curved surface block.

[0014] In the above implementation process, the arc surface block and the spring can play a clamping role.

[0015] In a specific implementation manner, a cavity is provided inside the fixing block, and the arc surface block is slidably connected to the cavity.

[0016] In the above implementation process, a cavity is provided inside the fixing block, and the cavity can play a role of limiting.

[0017] In a specific embodiment, a plurality of grooves are arranged on the surface of the injection head, and the arc surface block is in contact with the grooves.

[0018] In the above implementation process, a number of grooves are arranged on the surface of the injection head. When the injection head needs to be disassembled, the user can directly pull the injection head, and then the grooves will squeeze the arc surface block, causing the arc surface block to move into the cavity. Then the arc surface block and the grooves are misaligned, and the injection head can be disassembled. Conversely, the operation can be performed to install it.

[0019] In a second aspect, the utility model further provides a liquid filling machine, comprising the above-mentioned filling needle.

[0020] Compared with the prior art, the present application has the following beneficial effects: first, by arranging a check valve on the needle body, the liquid can be prevented from flowing by itself, thereby reducing waste of resources; secondly, the filter frame can filter the filling liquid, thereby preventing larger particles from clogging the injection head; since the injection head is slidably connected to the limit ring through the elastic block, the snap-on connection method can facilitate the disassembly and installation of the injection head, which is more convenient than the threaded connection and the disassembly and installation, thereby facilitating the disassembly of the injection head and reducing labor; at the same time, it can prevent the liquid from flowing by itself in the needle body, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a first-view structural diagram of a filling needle and a liquid filling machine provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the needle body structure provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the filter frame structure provided for the implementation method of the present application;

[0025] Figure 4 A schematic diagram of the structure of the elastic block from a second perspective provided in an embodiment of the present application.

[0026] In the figure: 100-filter assembly; 110-needle body; 111-limiting groove; 112-sealing ring; 120-filter frame; 121-frame plate; 122-filter screen; 123-limiting plate; 130-check valve; 200-connecting assembly; 210-limiting ring; 220-elastic block; 221-fixed block; 2211-cavity; 222-arc block; 223-spring; 230-injection head; 231-groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0028] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] See also Figure 1-4 The present application provides a filling needle including a filter component 100 and a connection component 200. The filter component 100 can filter and prevent liquid from flowing by itself, and the connection component 200 can facilitate disassembly and installation.

[0030] See also Figure 1-3 The filter assembly 100 includes a needle body 110, a filter frame 120 and a check valve 130. The filter frame 120 is arranged at one end of the needle body 110, and the check valve 130 is arranged on one side of the needle body 110. A limiting groove 111 is arranged at one end of the needle body 110. The setting of the limiting groove 111 can play a limiting role. A sealing ring 112 is arranged at one end of the needle body 110, and the injection head 230 is in contact with the sealing ring 112. The setting of the sealing ring 112 can improve the sealing effect between the needle body 110 and the injection head 230. The filter frame 120 includes a frame plate 121, a filter screen 122 and a limiting plate 123. The filter screen 122 is arranged inside the frame plate 121, the limiting plate 123 is fixedly connected to the frame plate 121, and the limiting plate 123 is in contact with the limiting groove 111. The filter screen 122 can play a filtering role, which can prevent larger particles from blocking the injection head 230.

[0031] See also Figure 1 and Figure 4 The connecting assembly 200 includes a limiting ring 210, an elastic block 220 and an injection head 230. The limiting ring 210 is fixedly connected to the needle body 110. The elastic block 220 is correspondingly arranged inside the limiting ring 210. The injection head 230 is slidably connected to the limiting ring 210 through the elastic block 220. The injection head 230 contacts the needle body 110. The elastic block 220 includes a fixed block 221, an arc block 222 and a spring 223. The arc block 222 is slidably connected to the fixed block 221. The spring 223 is arranged inside the fixed block 221. The spring 223 is fixedly connected to the arc block 222, and the arc block 222 and the spring 223 can play a clamping role.

[0032] In some specific implementation schemes, a cavity 2211 is provided inside the fixed block 221, and the arc surface block 222 is slidably connected to the cavity 2211. The cavity 2211 can serve as a limiter. A plurality of grooves 231 are provided on the surface of the injection head 230, and the arc surface block 222 is in contact with the groove 231. When the injection head 230 needs to be disassembled, the user can directly pull the injection head 230, and then the groove 231 will squeeze the arc surface block 222, so that the arc surface block 222 moves into the cavity 2211, and then the arc surface block 222 and the groove 231 are misaligned, so that the injection head 230 can be disassembled, and the opposite operation can be used to install it.

[0033] The utility model further provides a liquid filling machine, comprising the above-mentioned filling needle.

[0034] The working principle of the filling needle and the liquid filling machine is as follows: firstly, by setting a check valve 130 on the needle body 110, the liquid can be prevented from flowing by itself, thereby reducing waste of resources; secondly, the filter frame 120 can filter the filling liquid, thereby preventing larger particles from clogging the injection head 230; when the injection head 230 needs to be disassembled, the user can directly pull the injection head 230, and then the groove 231 will squeeze the arc block 222, so that the arc block 222 moves into the cavity 2211; then the arc block 222 and the groove 231 are misaligned, and the injection head 230 can be disassembled; conversely, the operation can be performed to install it; the clamping connection method can facilitate the disassembly and installation of the injection head 230, which is more convenient than the threaded connection disassembly and installation, thereby facilitating the disassembly of the injection head 230, reducing labor, and preventing the liquid from flowing by itself in the needle body 110, thereby improving practicality.

[0035] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A filling needle, characterized in that: include A filter assembly (100), the filter assembly (100) comprising a needle body (110), a filter frame (120) and a check valve (130), the filter frame (120) being arranged at one end of the needle body (110), and the check valve (130) being arranged at one side of the needle body (110); A connecting assembly (200), the connecting assembly (200) comprising a limiting ring (210), an elastic block (220) and an injection head (230), the limiting ring (210) being fixedly connected to the needle body (110), the elastic block (220) being correspondingly arranged inside the limiting ring (210), the injection head (230) being slidably connected to the limiting ring (210) via the elastic block (220), and the injection head (230) being in contact with the needle body (110).

2. A filling needle according to claim 1, characterized in that: A limiting groove (111) is provided at one end of the needle body (110).

3. A filling needle according to claim 1, characterized in that: A sealing ring (112) is provided at one end of the needle body (110), and the injection head (230) is in contact with the sealing ring (112).

4. A filling needle according to claim 2, characterized in that: The filter frame (120) comprises a frame plate (121), a filter screen (122) and a limit plate (123); the filter screen (122) is arranged inside the frame plate (121); the limit plate (123) is fixedly connected to the frame plate (121); and the limit plate (123) is in contact with the limit groove (111).

5. A filling needle according to claim 1, characterized in that: The elastic block (220) comprises a fixed block (221), a curved surface block (222) and a spring (223); the curved surface block (222) is slidably connected to the fixed block (221); the spring (223) is arranged inside the fixed block (221); and the spring (223) is fixedly connected to the curved surface block (222).

6. A filling needle according to claim 5, characterized in that: A cavity (2211) is provided inside the fixed block (221), and the arc surface block (222) is slidably connected to the cavity (2211).

7. A filling needle according to claim 6, characterized in that: A plurality of grooves (231) are provided on the surface of the injection head (230), and the arc surface block (222) is in contact with the grooves (231).

8. Liquid filling machine, characterized in that, include A filling needle as described in any one of claims 1 to 7.

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