Adjustable quantitative lead valve

Abstract

The utility model discloses an adjustable quantitative lead valve, and relates to the technical field of storage battery cast welding. The valve comprises a valve seat and a valve needle, the valve seat is connected with a valve sleeve, and a kidney-shaped liquid inlet is formed in the side wall of the valve sleeve; the valve needle is in threaded connection with an adjusting sleeve, and an annular groove channel and a flow guide groove channel communicating with the annular groove channel are formed in the outer wall of the adjusting sleeve. When the plug plugs the liquid outlet, the annular groove channel corresponds to the kidney-shaped liquid inlet in position, when the liquid outlet is opened, the annular groove channel and the kidney-shaped liquid inlet are staggered, the amount of lead liquid filled in the containing space between the adjusting sleeve and the valve seat is adjusted by adjusting the axial position of the adjusting sleeve and the axial position of the valve needle, and quantitative adjustment of the lead outlet amount is achieved. The valve needle is in threaded connection with the adjusting sleeve, and the axial position of the adjusting sleeve is adjusted, so that the amount of lead liquid filled between the adjusting sleeve and the valve seat is adjusted, quantitative adjustment of the lead output amount is achieved, and the problems that in the prior art, the fluctuation of the lead adding amount is large, and the accuracy of the lead adding amount is poor are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery casting and welding, in particular to an adjustable quantitative lead valve. Background Art

[0002] Existing techniques typically involve immersing the entire busbar mold in a lead furnace. Upon removal, the mold cavity is filled with molten lead. However, this method cannot accurately control the amount of molten lead in the busbar mold cavity. Furthermore, immersing the entire busbar mold can leave lead residue on its surface, requiring regular scraping to maintain the mold.

[0003] For example, Chinese utility model CN220825464U discloses a device for quantitatively filling lead liquid for cast welding of lead-acid batteries. By moving the control panel upward, the needle valve with the largest distance between the bottom of the needle valve and the bottom of the cavity will leave the lead liquid outlet first, the blockage will be released, and lead addition will begin. The blocking process is as follows: the control panel moves downward, the control panel squeezes the spring, and the spring squeezes the needle valve, so that the needle valve is completely against the bottom of the cavity, and the plug extends into the lead liquid outlet to achieve complete blocking.

[0004] The lead valve in the prior art controls the lead addition time to meet the different lead liquid amount requirements at different bus positions. However, the amount of lead liquid in the cavity and the temperature of the lead liquid will affect the flow rate of the lead liquid, resulting in large fluctuations in the amount of lead added. Therefore, the amount of lead added is controlled by the lead addition time, resulting in poor accuracy of the overall lead addition amount. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable quantitative lead valve, which is threadedly connected between the valve needle and the inner wall of the adjusting sleeve. By adjusting the axial position of the adjusting sleeve and the valve needle, the amount of lead liquid filled between the adjusting sleeve and the valve seat can be adjusted, thereby achieving quantitative adjustment of the lead output amount, solving the problems of large fluctuations in the existing lead addition amount and poor accuracy of the lead addition amount.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is an adjustable quantitative lead valve, comprising a valve seat and a valve needle; the valve seat is fixedly connected to a valve sleeve, a liquid outlet is provided at the bottom of the valve seat, and a waist-shaped liquid inlet is provided on the side wall of the valve sleeve; the valve needle sleeve is provided with an adjusting sleeve, and a plug that matches the liquid outlet is provided at the lower end of the valve needle; the outer wall of the adjusting sleeve is adapted to the inner wall of the valve sleeve, an annular groove is provided on the outer wall of the adjusting sleeve, a guide groove is axially provided at the lower end of the adjusting sleeve, and the upper end of the guide groove is connected to the annular groove; when the plug blocks the liquid outlet, the annular The groove corresponds to the position of the waist-shaped liquid inlet, so that the lead liquid enters between the lower end of the adjusting sleeve and the valve seat, and when the liquid outlet is opened, the annular groove and the waist-shaped liquid inlet are misaligned, and the outer wall of the adjusting sleeve blocks the waist-shaped liquid inlet; wherein, the valve needle is provided with a threaded section, and the inner wall of the adjusting sleeve and the threaded section are threadedly connected. By adjusting the axial position of the adjusting sleeve and the valve needle, the accommodating space between the adjusting sleeve and the valve seat is adjusted, so that the amount of filled lead liquid is adjusted, and the amount of lead output is quantitatively adjusted.

[0008] As an optimal technical solution of the present invention, the outer wall of the adjustment sleeve is provided with a flat section along the axial direction, the lower end of the flat section is connected to the annular groove, and the upper end extends to the upper end surface of the adjustment sleeve, so that an exhaust gap is formed between the flat section and the inner wall of the valve sleeve.

[0009] As a preferred technical solution of the present invention, a straight slot is axially provided on the side wall of the valve sleeve, and the adjustment sleeve is fixedly connected with a fixing pin which is clearance-matched with the straight slot and is used to limit the circumferential rotation of the adjustment sleeve.

[0010] As a preferred technical solution of the present invention, the lower end surface of the regulating sleeve is provided with a liquid inlet groove connected to the guide channel, so that the lead liquid can enter between the lower end of the regulating sleeve and the valve seat through the liquid inlet groove.

[0011] As a preferred technical solution of the present invention, the depths of the annular groove and the guide groove are equal.

[0012] As a preferred technical solution of the present invention, the valve needle is provided with a clamping portion, so as to facilitate clamping and rotating the valve needle through the clamping portion.

[0013] The utility model has the following beneficial effects:

[0014] The utility model provides a valve needle and an adjusting sleeve in the valve sleeve, the valve needle and the adjusting sleeve are threadedly connected, and the axial position between the adjusting sleeve and the valve needle is adjusted by rotating the valve needle, so that the accommodation space between the adjusting sleeve and the valve seat can be adjusted, thereby adjusting the amount of filled lead liquid, achieving quantitative adjustment of the lead output, and achieving quantitative lead output, thereby effectively improving the accuracy of the lead addition amount.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic structural diagram of an adjustable quantitative lead valve of the present invention;

[0018] Figure 2 for Figure 1 Front view of

[0019] Figure 3 for Figure 2 Cross-sectional view at AA in the middle;

[0020] Figure 4 for Figure 2 Schematic diagram of the structure when the middle liquid outlet is opened;

[0021] Figure 5 Schematic diagram of the structure of the valve needle and the adjusting sleeve;

[0022] Figure 6 This is the structural explosion diagram of the valve needle and the adjusting sleeve;

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1-valve seat, 2-valve needle, 3-adjusting sleeve, 101-valve sleeve, 102-liquid outlet, 103-waisted liquid inlet, 104-straight slot, 201-plug, 202-threaded section, 203-clamping part, 301-annular groove, 302-guide groove, 303-flat section, 304-fixing pin, 305-liquid inlet groove. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figure 1 and 2 As shown, the present invention is an adjustable quantitative lead valve comprising a valve seat 1 and a valve needle 2. The valve seat 1 is fixedly connected to a valve sleeve 101, which can be fixed to the valve sleeve 101 via a threaded connection. A liquid outlet 102 is defined at the bottom of the valve seat 1. The liquid outlet 102 communicates with the interior of the valve sleeve 101 and is concentrically arranged with the valve sleeve 101. A waist-shaped liquid inlet 103 is defined axially on the sidewall of the valve sleeve 101. The length of the waist-shaped liquid inlet 103 is less than the axial travel of the valve needle 2.

[0028] The upper end of the valve needle 2 is connected to a telescopic device, such as a cylinder or a hydraulic cylinder, which drives the valve needle 2 to move axially. The valve needle 2 is provided with an adjustment sleeve 3, and the lower end of the valve needle 2 is provided with a plug 201 that cooperates with the liquid outlet 102.

[0029] Among them, such as Figure 3 、 5 As shown in Figure 6, the valve needle 2 is provided with a threaded section 202, the diameter of the threaded section 202 is larger than the diameter of the valve needle 2, the inner wall of the adjusting sleeve 3 cooperates with the valve needle 2, and is provided with an internal thread that cooperates with the threaded section 202, so that the inner wall of the adjusting sleeve 3 and the threaded section 202 are threadedly connected, and the axial position of the adjusting sleeve 3 and the valve needle 2 is adjusted.

[0030] Specifically, a straight slot 104 is axially opened on the side wall of the valve sleeve 101, and the adjusting sleeve 3 is fixedly connected with a fixing pin 304 which is clearance-matched with the straight slot 104. For example, a threaded blind hole is opened on the side wall of the adjusting sleeve 3, and the fixing pin 304 is threadedly connected to the threaded blind hole, or a screw is directly used to limit the circumferential rotation of the adjusting sleeve 3 to avoid accidental rotation of the adjusting sleeve 3.

[0031] As a further optimization solution, a clamping portion 203 is provided on the upper end of the valve needle 2. The clamping portion 203 is located on the outside of the valve sleeve 101, which is convenient for clamping the clamping portion 203 with a wrench and clamping and rotating the valve needle 2. Since the adjusting sleeve 3 is exerted in the circumferential direction, the axial position of the adjusting sleeve 3 can be adjusted without disassembling the valve sleeve 101, thereby greatly improving the convenience of adjustment.

[0032] The outer wall of the adjusting sleeve 3 is adapted to the inner wall of the valve sleeve 101. An annular groove 301 is opened on the outer wall of the adjusting sleeve 3. A guide groove 302 is axially opened at the lower end of the adjusting sleeve 3. The upper end of the guide groove 302 is connected to the annular groove 301. The depths of the annular groove 301 and the guide groove 302 are equal.

[0033] At the same time, a flat surface 303 is formed axially on the outer wall of the adjustment sleeve 3. The depth of the flat surface 303 is less than that of the annular groove 301. The lower end of the flat surface 303 is connected to the annular groove 301, and the upper end extends to the upper end surface of the adjustment sleeve 3. This creates an exhaust gap between the flat surface 303 and the inner wall of the valve sleeve 101, allowing internal air to flow through the exhaust gap during the flow of molten lead.

[0034] The lower end surface of the regulating sleeve 3 is provided with a liquid inlet groove 305 connected to the guide groove 302. By providing the liquid inlet groove 305, it is easier for the lead liquid to enter between the lower end of the regulating sleeve 3 and the valve seat 1 through the liquid inlet groove 305, ensuring the smoothness and inflow speed of the lead liquid.

[0035] like Figure 3 As shown, when the plug 201 blocks the liquid outlet 102, the annular groove 301 corresponds to the position of the waist-shaped liquid inlet 103, as shown by the direction of the arrow in the figure. At this time, the lead liquid enters the accommodating space formed between the lower end of the adjusting sleeve 3 and the valve seat 1 through the waist-shaped liquid inlet 103, the annular groove 301, the guide groove 302 and the liquid inlet groove 305 in sequence. Since the position between the adjusting sleeve 3 and the valve needle 2 is fixed, after the plug 201 of the valve needle 2 blocks the liquid outlet 102, the distance between the adjusting sleeve 3 and the valve seat 1 is also fixed, so that the amount of lead liquid entering is fixed.

[0036] And, as Figure 4 As shown, when the valve needle 2 is driven to move upward and the liquid outlet 102 is opened, the annular groove 301 is misaligned with the waist-shaped liquid inlet 103, and the outer wall of the adjusting sleeve 3 blocks the waist-shaped liquid inlet 103, preventing the lead liquid from entering.

[0037] At this time, the lead liquid in the accommodation space formed between the lower end of the regulating sleeve 3 and the valve seat 1 is discharged through the liquid outlet 102, so that the amount of lead discharged each time is fixed, and quantitative lead discharge is achieved.

[0038] When the lead output needs to be adjusted, the axial position of the adjusting sleeve 3 is changed by rotating the valve needle 2, so that the accommodation space between the adjusting sleeve 3 and the valve seat 1 is adjusted, thereby adjusting the amount of lead liquid filled inside, and then achieving quantitative adjustment of the lead output.

[0039] If the position of the adjusting sleeve 3 is adjusted upward, the accommodation space between the adjusting sleeve 3 and the valve seat 1 is increased, so that the amount of liquid lead entering is increased, and after the liquid outlet 102 is opened, the amount of liquid lead discharged is increased, thereby achieving the effect of quantitative lead discharge. Therefore, by flexibly adjusting the axial position of the adjusting sleeve 3, the lead discharge amount can be accurately adjusted, effectively ensuring the accuracy of the lead addition amount.

[0040] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable quantitative lead valve, characterized by: It comprises a valve seat (1) and a valve needle (2); the valve seat (1) is fixedly connected to a valve sleeve (101), a liquid outlet (102) is provided at the bottom of the valve seat (1), and a waist-shaped liquid inlet (103) is provided on the side wall of the valve sleeve (101); The valve needle (2) is provided with an adjusting sleeve (3), and the lower end of the valve needle (2) is provided with a plug (201) that matches the liquid outlet (102); the outer wall of the adjusting sleeve (3) is adapted to the inner wall of the valve sleeve (101), the outer wall of the adjusting sleeve (3) is provided with an annular groove (301), the lower end of the adjusting sleeve (3) is axially provided with a guide groove (302), and the upper end of the guide groove (302) is communicated with the annular groove (301); When the plug (201) blocks the liquid outlet (102), the annular groove (301) corresponds to the position of the waist-shaped liquid inlet (103), so that the lead liquid enters between the lower end of the regulating sleeve (3) and the valve seat (1); and when the liquid outlet (102) is opened, the annular groove (301) and the waist-shaped liquid inlet (103) are misaligned, and the outer wall of the regulating sleeve (3) blocks the waist-shaped liquid inlet (103); The valve needle (2) is provided with a threaded section (202), and the inner wall of the adjusting sleeve (3) and the threaded section (202) are threadedly connected. By adjusting the axial position of the adjusting sleeve (3) and the valve needle (2), the accommodation space between the adjusting sleeve (3) and the valve seat (1) is adjusted, thereby adjusting the amount of filled lead liquid and achieving quantitative adjustment of the lead output.

2. The adjustable quantitative lead valve according to claim 1, characterized in that: The outer wall of the regulating sleeve (3) is provided with a flat section (303) along the axial direction, the lower end of the flat section (303) is communicated with the annular groove (301), and the upper end extends to the upper end surface of the regulating sleeve (3), so that an exhaust gap is formed between the flat section (303) and the inner wall of the valve sleeve (101).

3. An adjustable quantitative lead valve according to claim 1 or 2, characterized in that: A straight slot (104) is axially provided on the side wall of the valve sleeve (101), and a fixing pin (304) is fixedly connected to the regulating sleeve (3) and is clearance-matched with the straight slot (104) to limit the circumferential rotation of the regulating sleeve (3).

4. The adjustable quantitative lead valve according to claim 1, characterized in that: The lower end surface of the regulating sleeve (3) is provided with a liquid inlet groove (305) connected to the guide channel (302), so that the lead liquid can enter between the lower end of the regulating sleeve (3) and the valve seat (1) through the liquid inlet groove (305).

5. An adjustable quantitative lead valve according to claim 1 or 4, characterized in that: The depths of the annular groove (301) and the diversion groove (302) are equal.

6. The adjustable quantitative lead valve according to claim 1, characterized in that: The valve needle (2) is provided with a clamping portion (203), which facilitates clamping and rotating the valve needle (2) through the clamping portion (203).

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