Structure of composite seal for a poppet valve pump

Abstract

This utility model provides a composite seal structure for a cone valve pump, belonging to the field of control valve technology. It includes a discharge valve seat, with an inlet valve seat inserted into one side of the discharge valve seat, and a switching cylinder, spring, rear cover, and front cover inserted into the other side of the discharge valve seat. This utility model allows slurry or mine filling mortar to flow into the inlet chamber. The switching cylinder moves a small sealing ring, causing it to separate from the large sealing ring, allowing the slurry or mine filling mortar to flow into the discharge chamber within the discharge valve seat for discharge. The switching cylinder then moves the small sealing ring into the large sealing ring for sealing. When small stones become stuck between the large and small sealing rings, a sealing ring provides auxiliary sealing, achieving a better seal between the small and large sealing rings. This improves the equipment's sealing performance and reduces the risk of slurry or mine filling mortar leaking out due to small stones getting stuck.

Description

Technical Field

[0001] This utility model relates to the field of control valve technology, and in particular to a composite seal structure for a cone valve pump. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. They are control components in fluid transport systems and have functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief. They can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media.

[0003] However, in the use of existing equipment, small stones may get stuck between the sealing rings, resulting in insufficient sealing and gaps. This may allow mud or mortar used for mine filling to flow out of the gaps, and the sealing rings cannot be used to perform multiple seals. Therefore, this application provides a composite seal structure for cone valve pumps to meet the requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a composite seal structure for a cone valve pump to solve the problem that small stones may get stuck between the sealing rings when the existing equipment is in use, resulting in insufficient sealing and gaps, which may allow mud or mortar used for mine filling to flow out from the gaps.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A composite seal structure for a cone valve pump includes a discharge valve seat, an inlet valve seat inserted into one side of the discharge valve seat, a switching cylinder inserted into one side of the discharge valve seat, a rear cover inserted into one side of the switching cylinder, a small sealing ring inserted into one side of the rear cover, a front cover inserted into one side of the rear cover, a fixing screw installed on one side of the switching cylinder, a large sealing ring provided inside the discharge valve seat, a fixing component inserted inside the large sealing ring, the fixing component including a fixing pad, a telescopic rod, a spring, a connecting pad, and a fixing half-ring, a telescopic rod inserted into one side of the fixing pad, a spring provided on the surface of the telescopic rod, a connecting pad sleeved on one end of the telescopic rod, and a fixing half-ring sleeved on one side of the connecting pad.

[0007] Optionally, the fixing pad is made of rubber, the connecting pad is made of rubber, and the spring is located between the fixing pad and the connecting pad.

[0008] Optionally, a contact pad is provided on one side of the fixing semi-ring, and the contact pad is made of rubber.

[0009] Optionally, the discharge valve seat has a discharge chamber inside, and the feed valve seat has a feed chamber inside.

[0010] Optionally, the surface of the sealing ring is provided with a sealing ring, and the sealing ring is made of polyurethane.

[0011] Optionally, the surface of the sealing ring is conical, and the sealing ring is made of cemented carbide.

[0012] Optionally, the surface of the sealing ring is conical, and the sealing ring is made of cemented carbide.

[0013] Optionally, a hole is provided on one side of the front cover and a hole is provided on one side of the rear cover, and the fixing screw passes through the hole and is connected to the switching cylinder.

[0014] Optionally, a fixing cover is threaded through one side of the front cover, a protective cover is inserted into one side of the fixing cover, and a mating ring is fitted onto the surface of the protective cover. The mating ring is made of rubber.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above solution, by installing the rear cover, sealing ring, and front cover at one end of the switching cylinder, and fixing them with a fixing screw, and then installing the fixing cover inside the front cover, and then fitting the mating ring onto the surface of the protective cover, the protective cover is inserted into the fixing cover to protect it. This achieves convenient and quick protection of the fixing screw, thereby reducing the risk of the fixing screw becoming loose due to wear and tear on the fixing cover during long-term use, which could lead to loosening of internal parts and equipment failure. The solution involves allowing mud or mine filling mortar to flow into the feed chamber inside the feed valve seat. The switching cylinder moves the sealing ring, causing it to separate from the sealing ring, allowing the mud or mine filling mortar to flow into the feed chamber. The material flows into the discharge chamber inside the discharge valve seat for discharge. Then, the switching cylinder moves the small sealing ring into the large sealing ring for sealing. When one side of the small sealing ring is severely worn, the other side can be replaced to contact the large sealing ring. When small stones get stuck between the large and small sealing rings, the sealing ring provides auxiliary sealing. The fixed half-ring moves with the telescopic rod, compressing the spring so that the front cover contacts the fixed half-ring for auxiliary sealing. When the front cover moves away, the fixed half-ring moves with the telescopic rod, achieving the effect of auxiliary sealing between the small and large sealing rings. This improves the equipment's sealing performance, increases its service life, and reduces the risk of small stones getting stuck, which could cause poor sealing and allow mud or mine filling mortar to leak out from the gaps. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0018] Figure 1 A three-dimensional structural diagram of a composite seal for a cone valve pump;

[0019] Figure 2 This is a schematic diagram of the planar structure of the feed valve seat;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the discharge valve seat;

[0021] Figure 4 This is a schematic diagram of the exploded structure of a fixed component;

[0022] Figure 5 This is a schematic diagram of the front cover's planar structure;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of a partial planar structure.

[0024] Figure label:

[0025] 1. Discharge valve seat; 2. Feed valve seat; 3. Switch cylinder; 4. Rear cover; 5. Sealing ring; 6. Front cover; 7. Fixing screw; 8. Sealing ring; 9. Fixing assembly; 901. Fixing pad; 902. Telescopic rod; 903. Spring; 904. Connecting pad; 905. Fixing half ring; 10. Discharge chamber; 11. Feed chamber; 12. Sealing ring; 13. Fixing cover; 14. Protective cover; 15. Connecting ring.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0027] The structure of a composite seal for a cone valve pump provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0032] like Figures 1 to 6As shown, an embodiment of this utility model provides a composite seal structure for a cone valve pump, including a discharge valve seat 1, with a discharge chamber 10 inside the discharge valve seat 1. A feed valve seat 2 is inserted into one side of the discharge valve seat 1, with a feed chamber 11 inside the feed valve seat 2. A switching cylinder 3 is inserted into one side of the discharge valve seat 1, and a rear cover 4 is inserted into one side of the switching cylinder 3. A hole is formed on one side of the rear cover 4, and a sealing ring 5 is inserted into one side of the rear cover 4. The sealing ring 5 has a double-sided symmetrical structure, a conical surface, and is made of hard alloy. A sealing ring 12 made of polyurethane is provided on the surface of the sealing ring 5. A front cover 6 is inserted into one side of the rear cover 4, with a fixed cover 13 threaded through one side of the front cover 6. A protective cover 14 is inserted into one side of the fixed cover 13, and a mating ring 15 made of rubber is fitted onto the surface of the protective cover 14. The front cover 6... A hole is provided on one side of the valve seat 1. A fixing screw 7 is installed on one side of the switch cylinder 3. The fixing screw 7 passes through the hole and is connected to the switch cylinder 3. A sealing ring 8 is provided inside the discharge valve seat 1. The surface of the sealing ring 8 is conical and the material of the sealing ring 8 is hard alloy. A fixing component 9 is inserted inside the sealing ring 8. The fixing component 9 includes a fixing pad 901, a telescopic rod 902, a spring 903, a connecting pad 904, and a fixing half ring 905. The fixing pad 901 is made of rubber. A telescopic rod 902 is inserted into one side of the fixing pad 901. A spring 903 is provided on the surface of the telescopic rod 902. The spring 903 is located between the fixing pad 901 and the connecting pad 904. A connecting pad 904 is sleeved on one end of the telescopic rod 902. The connecting pad 904 is made of rubber. A fixing half ring 905 is sleeved on one side of the connecting pad 904. A contact pad is provided on one side of the fixing half ring 905. The contact pad is made of rubber.

[0033] By installing the rear cover 4, sealing ring 5, and front cover 6 at one end of the switching cylinder 3, and fixing the rear cover 4, sealing ring 5, and front cover 6 with the fixing screw 7, and then installing the fixing cover 13 inside the front cover 6, and then putting the mating ring 15 on the surface of the protective cover 14, and inserting the protective cover 14 into the fixing cover 13 to protect the fixing cover 13, a convenient and quick protection of the fixing screw 7 is achieved. This reduces the risk of the fixing screw 7 becoming loose due to wear and tear of the fixing cover 13 during long-term use, which could lead to loosening of internal parts and equipment failure. The system allows mud or mine filling mortar to flow into the feed chamber 11 inside the feed valve seat 2. The switching cylinder 3 moves the sealing ring 5, causing it to separate from the sealing ring 8, allowing the mud or mine filling mortar to flow into the discharge valve seat. Material is discharged from the discharge chamber 10 within the equipment. Then, the small sealing ring 5 is moved to the large sealing ring 8 by the switching cylinder 3 to achieve a seal. When one side of the small sealing ring 5 is severely worn, the other side can be replaced to contact the large sealing ring 8. When small stones are stuck between the large sealing ring 8 and the small sealing ring 5, the sealing ring 12 provides auxiliary sealing. The fixed half ring 905 moves with the telescopic rod 902, which compresses the spring 903, causing the front cover 6 to contact the fixed half ring 905 for auxiliary sealing. When the front cover 6 is removed, the fixed half ring 905 moves along with the spring 903 and the telescopic rod 902, achieving the effect of auxiliary sealing between the small sealing ring 5 and the large sealing ring 8. This improves the sealing performance of the equipment, increases the service life of the equipment, and reduces the risk of the equipment not sealing properly when small stones are stuck, preventing mud or mine filling mortar from flowing out of the gaps.

[0034] The working principle of the technical solution provided by this utility model is as follows: The rear cover 4, the sealing ring 5, and the front cover 6 are installed at one end of the switching cylinder 3. The rear cover 4, the sealing ring 5, and the front cover 6 are fixed by the fixing screw 7. After installing the fixing cover 13 inside the front cover 6, the mating ring 15 is placed on the surface of the protective cover 14. The protective cover 14 is then inserted into the fixing cover 13 to protect it. Slurry or mine filling mortar flows into the feed chamber 11 inside the feed valve seat 2. The switching cylinder 3 moves the sealing ring 5, causing it to separate from the sealing ring 8, allowing the slurry or mine filling mortar to flow into the discharge chamber 10 inside the discharge valve seat 1. The material is discharged, and then the small sealing ring 5 is moved into the large sealing ring 8 by the switch cylinder 3 to seal it. When one side of the small sealing ring 5 is severely worn, the other side can be replaced to contact the large sealing ring 8. When small stones are stuck between the large sealing ring 8 and the small sealing ring 5, the sealing ring 12 provides auxiliary sealing. The fixed half ring 905 moves with the telescopic rod 902, which compresses the spring 903, so that the front cover 6 contacts the fixed half ring 905 for auxiliary sealing. When the front cover 6 leaves, the fixed half ring 905 also moves with the spring 903 and the telescopic rod 902, allowing the mud or mine filling mortar to flow into the discharge chamber 10 in the discharge valve seat 1 for discharge.

[0035] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A composite seal structure for a cone valve pump, characterized in that, The device includes a discharge valve seat, an inlet valve seat inserted into one side of the discharge valve seat, a switching cylinder inserted into one side of the discharge valve seat, a rear cover inserted into one side of the switching cylinder, a small sealing ring inserted into one side of the rear cover, a front cover inserted into one side of the rear cover, a fixing screw installed on one side of the switching cylinder, a large sealing ring inside the discharge valve seat, a fixing component inserted inside the large sealing ring, the fixing component including a fixing pad, a telescopic rod, a spring, a connecting pad, and a fixing half-ring, a telescopic rod inserted into one side of the fixing pad, a spring on the surface of the telescopic rod, a connecting pad sleeved on one end of the telescopic rod, and a fixing half-ring sleeved on one side of the connecting pad.

2. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, The fixing pad is made of rubber, the connecting pad is made of rubber, and the spring is located between the fixing pad and the connecting pad.

3. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, One side of the fixed semi-ring is provided with a contact pad, and the contact pad is made of rubber.

4. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, The discharge valve seat has a discharge chamber inside, and the feed valve seat has a feed chamber inside.

5. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, The surface of the sealing ring is provided with a sealing ring, and the sealing ring is made of polyurethane.

6. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, The surface of the sealing ring is conical, and the sealing ring is made of cemented carbide.

7. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, The surface of the sealing ring is conical, and the sealing ring is made of cemented carbide.

8. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, A hole is provided on one side of the front cover and a hole is provided on one side of the rear cover. The fixing screw passes through the hole and is connected to the switching cylinder.

9. The structure of the composite seal for the cone valve pump according to claim 1, characterized in that, A fixing cover is threaded through one side of the front cover, and a protective cover is inserted into one side of the fixing cover. A mating ring is fitted onto the surface of the protective cover, and the mating ring is made of rubber.

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