Scale valve assembly for precise dispensing

Abstract

The utility model relates to a scale valve assembly for precise dispensing. The operation rotating shaft is arranged in the middle of the side wall of the valve body and used for controlling a valve element in the valve body, and the end of the operation rotating shaft extends to form a linear protruding block; the indicating dial is arranged on the valve body, arranged on the operation rotating shaft in a sleeving mode and provided with scales; the rotating handle assembly is arranged at the end of the operation rotating shaft in a sleeving mode and used for allowing the linear protruding block to be inserted into and rotate the operation rotating shaft; the elastic component is arranged between the rotating handle component and the indicating dial and is used for separating the rotating handle component from the linear bump on the operating rotating shaft; through the arrangement of the elastic assembly, after the rotating handle assembly is rotated, the rotating handle assembly is pushed to be separated from the straight-line-shaped protrusion on the end portion of the operation rotating shaft, the operation rotating shaft cannot be rotated under external force, errors of the glue discharging amount are avoided, the glue discharging device can adapt to various scale positions and various scale numerical values, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of tightening, in particular to a graduated valve assembly for precise dispensing. Background Art

[0002] In the process of dispensing thermal conductive gel by the existing dispensing machine, the difference in fluidity between batches of gel will cause uneven dispensing and poor quality. The glue discharge diameter can be adjusted by a control valve with a scale, which adds a control variable. However, the handle on the existing scale valve is not fixed and is easily offset by external force, causing the rotation angle of the scale valve to shift, which still affects the glue discharge amount. Utility Model Content

[0003] The utility model aims to provide a calibrated valve assembly for precise dispensing in order to overcome the deficiencies of the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a scale valve assembly for precision dispensing, comprising a valve body, an operating shaft arranged in the middle of the side wall of the valve body for controlling the valve core in the valve body and with a straight-line protrusion extending from the end, an indicator disk with a scale arranged in the valve body and sleeved on the operating shaft, a handle assembly sleeved on the end of the operating shaft for inserting the straight-line protrusion to rotate the operating shaft, and an elastic assembly arranged between the handle assembly and the indicator disk for separating the handle assembly from the straight-line protrusion on the operating shaft.

[0005] Preferably, the elastic component includes an extension plate annularly arranged on a side of the handle assembly facing the indicator disk, an annular groove annularly arranged on the indicator disk for inserting the extension plate, an annular driving plate slidably arranged in the annular groove, and a plurality of springs arranged between the annular groove and the annular driving plate for pushing the annular driving plate toward the notch of the annular groove.

[0006] Preferably, the handle assembly includes a handle body, a shaft slot arranged in the middle of a side of the handle body facing the indicator disk for inserting an operating shaft, an I-shaped slot arranged in the shaft slot for inserting an I-shaped protrusion, two operating handles arranged on both sides of the handle body, and threaded rods arranged on the side where the two operating handles fit with the handle body for threaded connection to both sides of the handle body; one ends of the two threaded rods pass through the shaft slot; corresponding limiting grooves are arranged on the operating shaft for limiting the horizontal movement of one ends of the two threaded rods; the limiting grooves do not hinder the circumferential rotation of one ends of the two threaded rods around the operating shaft.

[0007] Preferably, anti-slip grooves are provided on the two operating handles.

[0008] Preferably, rubber gaskets are arranged around the operating shaft on the indicator disk.

[0009] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0010] The utility model provides an elastic component, which pushes the rotary handle component to separate from the straight-shaped protrusion on the end of the operating shaft after the rotary handle component is rotated. This not only ensures that the operating shaft will not rotate when subjected to external force, thus avoiding errors in the amount of glue discharged, but also can adapt to various scale positions and meet various scale values, thereby improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0012] Attached Figure 1 This is a front structural schematic diagram of the precision dispensing scale valve assembly of the utility model;

[0013] Attached Figure 2 It is a schematic diagram of the side partial cross-sectional structure of the precision dispensing graduated valve assembly of the utility model;

[0014] Attached Figure 3 The utility model is a precision dispensing scale valve assembly Figure 2 A local enlarged structural schematic diagram;

[0015] Attached Figure 4 It is a schematic diagram of the top view of the structure of the indicator disk of the precision dispensing scale valve assembly of the utility model;

[0016] Attached Figure 5 It is a structural schematic diagram of the rotary handle assembly of the calibrated valve assembly for precision dispensing described in the utility model.

[0017] Among them: 1. Valve body; 2. Operating shaft; 3. I-shaped protrusion; 4. Indicator plate; 5. Handle assembly; 51. Handle body; 52. Shaft slot; 53. I-shaped slot; 54. Operating handle; 55. Threaded rod; 56. Limiting groove; 6. Elastic assembly; 61. Extension plate; 62. Annular groove; 63. Annular drive plate; 64. Spring; 7. Rubber gasket; 8. Anti-slip pattern. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Attached Figure 1-5The precision dispensing graduated valve assembly of the utility model comprises a valve body 1, an operating shaft 2 arranged in the middle of the side wall of the valve body 1 for controlling the valve core in the valve body 1 and having a straight-line protrusion 3 extending from the end thereof, an indicating disk 4 with a scale arranged on the valve body 1 and sleeved on the operating shaft 2, a handle assembly 5 sleeved on the end of the operating shaft 2 for inserting the straight-line protrusion 3 into the rotating operating shaft 2, and an elastic assembly 6 arranged between the handle assembly 5 and the indicating disk 4 for separating the handle assembly 5 from the straight-line protrusion 3 on the operating shaft 2; the elastic assembly 6 comprises an extension plate 61 annularly arranged on a side of the handle assembly 5 facing the indicating disk 4, an annular groove 62 annularly arranged on the indicating disk 4 for inserting the extension plate 61, an annular driving plate 63 slidably arranged in the annular groove 62, and an annular driving plate 63 arranged in the annular groove 62 ... There are several springs 64 between the plates 63 for pushing the annular driving plate 63 toward the notch of the annular groove 62; the handle assembly 5 includes a handle body 51, a shaft slot 52 arranged in the middle of the side of the handle body 51 facing the indicator plate 4 for inserting the operating shaft 2, a straight-line slot 53 arranged in the shaft slot 52 for inserting the straight-line protrusion 3, two operating handles 54 arranged on both sides of the handle body 51, and threaded rods 55 arranged on the side of the two operating handles 54 that fit with the handle body 51 for threaded connection on both sides of the handle body 51; one end of the two threaded rods 55 both penetrates into the shaft slot 52; a limiting groove 56 for limiting the horizontal movement of one end of the two threaded rods 55 is correspondingly arranged on the operating shaft 2; the limiting groove 56 does not hinder the rotation of one end of the two threaded rods 55 around the operating shaft 2.

[0020] Furthermore, rubber gaskets 7 are arranged around the operating shaft 2 on the indicator plate 4 to act as a buffer.

[0021] Furthermore, the two operating knobs 54 are provided with anti-skid patterns 8 to prevent slipping.

[0022] When in use: when glue needs to be dispensed, first hold the operating handle 54 and press the handle body 51, so that the straight-line protrusion 3 on the end of the operating shaft 2 is inserted into the straight-line slot 53 in the shaft slot 52 of the handle body 51, and then hold the operating handle 54 to rotate the handle body 51 according to the required angle. When the operating handle 54 is rotated to the right position, the spring 64 loses pressure and starts to reset, and then pushes the annular driving plate 63 to move toward the notch of the annular groove 62, and the annular driving plate 63 pushes the extension plate 61 to move a certain distance. The extending plate 61 then pushes the handle body 51 to move an end distance, so that the I-shaped slot 53 is separated from the I-shaped protrusion 3, so that the handle body 51 will rotate when subjected to external force but will not affect the operating shaft 2, and the handle body 51 is limited on the limiting groove 56 by the two threaded rods 55 on the two operating handles 54, so that it will not separate from the operating shaft 2. Since the limiting groove 56 is annularly arranged on the surface of the operating shaft 2, the handle body 51 will not affect the operating shaft 2 when it rotates away from the I-shaped protrusion 3.

[0023] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A graduated valve assembly for precision dispensing, characterized in that: The invention comprises a valve body, an operating shaft arranged in the middle of the side wall of the valve body for controlling the valve core in the valve body and having a straight-line protrusion extending from the end, an indicating disk with scales arranged in the valve body and sleeved on the operating shaft, a handle assembly sleeved on the end of the operating shaft for inserting the straight-line protrusion to rotate the operating shaft, and an elastic assembly arranged between the handle assembly and the indicating disk for separating the handle assembly from the straight-line protrusion on the operating shaft.

2. The precision dispensing graduated valve assembly according to claim 1, characterized in that: The elastic component includes an extension plate annularly arranged on a side of the handle component facing the indicator disk, an annular groove annularly arranged on the indicator disk for inserting the extension plate, an annular driving plate slidably arranged in the annular groove, and a plurality of springs arranged between the annular groove and the annular driving plate for pushing the annular driving plate toward the notch of the annular groove.

3. The precision dispensing graduated valve assembly according to claim 1, characterized in that: The handle assembly includes a handle body, a shaft slot arranged in the middle of a side of the handle body facing the indicator disk for inserting an operating shaft, a straight-line slot arranged in the shaft slot for inserting a straight-line protrusion, two operating handles arranged on both sides of the handle body, and threaded rods arranged on the side where the two operating handles fit the handle body and are threadedly connected to both sides of the handle body; one end of the two threaded rods passes through the shaft slot; corresponding limiting grooves are arranged on the operating shaft for limiting the horizontal movement of one end of the two threaded rods; the limiting grooves do not hinder the circumferential rotation of one end of the two threaded rods around the operating shaft.

4. The precision dispensing graduated valve assembly according to claim 3, characterized in that: Anti-slip grooves are arranged on the two operating handles.

5. The precision dispensing graduated valve assembly according to claim 1, characterized in that: The indicating plate is provided with rubber gaskets around the operating shaft.

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