Novel valve group device for grouting equipment

Abstract

The utility model discloses a novel valve group device for grouting equipment, which relates to the field of valve group devices, and adopts the technical scheme that the novel valve group device comprises a valve body and a joint arranged at the top of the valve body, a valve seat is mounted in the valve body close to the bottom, a valve ball is movably connected above the valve seat in the valve body, and the valve ball is movably connected with the joint. The ball valve is characterized in that an elastic maintaining assembly is installed at the position, close to the top end, in the valve body, the elastic maintaining assembly comprises a guiding spring, the bottom of the guiding spring is connected with the valve ball, and under the guiding effect of the guiding spring, it can be guaranteed that the valve ball vertically ascends and descends; and eccentricity of ascending and falling of the valve seat is prevented, so that the valve ball can vertically ascend and descend without reducing a gap between the valve ball and the valve body, and circulation of slurry is not affected.

Description

Technical Field

[0001] The utility model relates to the field of valve group devices, and more specifically, to a novel valve group device for grouting equipment. Background Art

[0002] Existing grouting equipment is divided into pneumatic, hydraulic and electric types according to the transmission mode. The grouting equipment's slurry suction and discharge valve group structure mainly adopts a valve ball and valve seat one-way sealing structure.

[0003] Common slurry suction or discharge valve groups are mainly composed of joints, limit seats, valve balls, valve bodies and valve seats. When the valve ball moves upward, it separates from the valve seat, and the slurry flows through the gap between the valve ball and the valve body. In order to ensure smooth slurry flow, the gap between the valve ball and the valve seat is often increased. However, an excessively large gap will also cause the valve ball to deflect greatly and the landing point to be uneven when it falls back, causing the sealing lip of the valve seat to be out of round and deformed significantly, resulting in failure of the one-way sealing structure. If the gap between the valve ball and the valve seat is reduced, although it ensures that the sealing lip of the valve seat is less out of round and deformed when the valve ball falls, and the landing point is more uniform, which greatly extends the service life of the one-way sealing structure, it will also lead to poor slurry discharge from the valve group, which can easily cause slurry blockage in the equipment and affect the normal operation of the grouting equipment.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a new valve group device for grouting equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a novel valve group device for grouting equipment.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a novel valve assembly device for grouting equipment, comprising a valve body and a joint provided at the top of the valve body, a valve seat being installed near the bottom of the valve body, a valve ball being movably connected to the valve body above the valve seat, and the feature being that an elastic retaining assembly is installed near the top of the valve body;

[0007] The elastic maintaining component includes a guide spring whose bottom is connected to the valve ball. Under the guiding action of the guide spring, the vertical rise and fall of the valve ball is guaranteed.

[0008] Preferably, the elastic maintaining assembly also includes a T-shaped spring support, the top of the guide spring is sleeved and fixed on the boss of the T-shaped spring support, and the bottom is connected to the outer circular surface of the valve ball. The T-shaped spring support provides a stable installation base for the guide spring, and its boss structure can ensure that the spring is accurately positioned in the vertical direction to prevent the spring from lateral deviation during operation.

[0009] Preferably, the guide spring is a pagoda-type structure, the small end of the guide spring is sleeved and fixed on the boss of the T-shaped spring support, the large end is in contact with the outer circular surface of the valve ball, and the valve ball is pre-tightened in the large end spring of the guide spring.

[0010] Preferably, a limiting bracket is installed on the inner side wall of the valve body.

[0011] Preferably, the limit bracket is composed of an arc limit platform and a fence, the fence is fixed to the inner wall of the valve body, and the number of the arc limit platforms is four, which are distributed in a circular array on the inner wall of the fence; the circular area enclosed by the arc limit platforms is channel A, which is used to keep the valve ball from falling vertically, and four channels B for slurry flow are formed outside the channel A area between the arc limit platforms, further ensuring the vertical fall of the valve ball and ensuring the smooth flow of slurry in the valve group.

[0012] Preferably, the joint is provided with an external thread, and the valve body is provided with an internal thread matching the external thread, which is installed on the valve body via a rotary joint. This connection method is relatively convenient to install and disassemble, and can ensure better sealing performance.

[0013] Preferably, the valve seat is pressed into the valve body in an interference fit manner. This connection manner can ensure the stability of the valve seat inside the valve body and can provide a good sealing surface.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The valve group of the utility model replaces the cylindrical pin with an elastic maintenance component to prevent the eccentricity of the valve seat when rising and falling. Therefore, the valve ball can be vertically raised and lowered without reducing the gap between the valve ball and the valve body, without affecting the circulation of slurry. This solves the problem in the background technology that too large a gap will lead to uneven landing points, and if the gap is too small, it will lead to poor slurry discharge and easy slurry blockage in the equipment.

[0016] 2. The guide spring of the utility model is a pagoda-shaped structure, which is not only convenient for fixing and guiding, but also increases the flow area of ​​the slurry compared to the cylindrical spring;

[0017] 3. When the valve group of the present invention is discharging slurry, there are four arc limit platforms evenly distributed in the limit bracket, forming a rising and falling channel for the valve ball, namely, the through groove A, which further ensures that the valve ball falls back vertically, so that the landing point of the valve ball coincides with the sealing lip of the valve seat, ensuring the sealing performance of the valve group and extending the service life of the valve seat. The slurry passes through the limit surface bracket, and four channels B for the flow of slurry are formed between the arc limit platforms except the channel A area, ensuring that the slurry flows smoothly in the valve group. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 This is a cross-sectional view of the valve assembly before improvement of the utility model;

[0020] Figure 2 This is a cross-sectional view of the improved new valve group device of the utility model;

[0021] Figure 3 For this utility model Figure 2 Top view of the middle limit bracket

[0022] In the figure: 1. Connector; 2. Cylindrical pin; 3. Valve body; 4. Valve ball; 5. Valve seat; 6. T-type spring support; 7. Guide spring;

[0023] 8. Limit bracket; 801. Arc limit platform; 802. Fence; 803. Channel A; 804. Channel B. DETAILED DESCRIPTION

[0024] like Figure 1 The figure shows a valve manifold in the prior art. When this valve manifold draws slurry, the valve ball 4 rises away from the valve seat 5. Due to the large cavity between the inner wall of the valve body 3 and the valve ball 4, there is no position limiter during the ascent of the valve ball 4. The angle of ascent varies randomly with the movement of the slurry, often deviating significantly from the center of the valve seat 5. Once the valve ball 4 reaches a certain height, it contacts the cylindrical pin 2, allowing the slurry to pass through both sides of the pin 2. Because the outer contact surface of the cylindrical pin 2 is an arc, the valve ball 4 is deflected by the pin 2, deviating from the centerline of the valve seat 5. When the valve manifold discharges slurry, the valve ball 4 falls back due to its own weight and the elastic force of the cylindrical pin 2. During this fall, the elastic force of the cylindrical pin 2 deviates from the centerline of the valve seat 5, causing the valve ball 4 to randomly contact the inner wall of the valve body 3 or the valve seat 5 eccentrically, preventing it from sealing with the sealing lip of the valve seat 5 in a timely manner. This random landing of the valve ball 4 causes the sealing lip of the valve seat 5 to become out of round, leading to severe leakage and premature failure of the valve seat 5.

[0025] like Figure 2 、 Figure 3 As shown in FIG, the improved valve group of the present invention includes a valve body 3 and a joint 1 arranged on the top of the valve body 3. The joint 1 is provided with an external thread, and the valve body 3 has an internal thread matching the external thread. The joint 1 is installed on the valve body 3 by rotating the joint 1. This connection method is relatively convenient to install and disassemble, and can ensure good sealing performance. For example, in some small slurry suction or discharge valve groups, a fine thread connection is adopted. The fine thread has a smaller pitch and a tighter connection, which can effectively prevent liquid leakage.

[0026] A valve seat 5 is installed near the bottom of the valve body 3. The valve seat 5 is pressed into the valve body 3 in an interference fit manner. This connection method can ensure the stability of the valve seat 5 inside the valve body 3 and can provide a good sealing surface. For example, in some high-precision slurry suction and discharge valve groups, the installation accuracy of the valve seat 5 is required to be high. The press-in connection can make the valve seat 5 and the valve body 3 fit more tightly. A valve ball 4 is movably connected above the valve seat 5 in the valve body 3, and an elastic maintaining component is installed near the top of the valve body 3.

[0027] The elastic maintaining component includes a guide spring 7 connected to the bottom of the valve ball 4. It can be seen that the improved valve group replaces the cylindrical pin 2 with an elastic maintaining component. Under the guiding action of the guide spring 7, the valve ball 4 is kept vertically rising when absorbing slurry, and is kept vertically falling when discharging slurry.

[0028] Furthermore, the elastic maintaining assembly also includes a T-shaped spring support 6, the top of the guide spring 7 is sleeved and fixed on the boss of the T-shaped spring support 6, and the bottom is connected to the outer circular surface of the valve ball 4 (the T-shaped spring support 6 provides a stable installation base for the guide spring 7, and its boss structure can ensure that the spring is accurately positioned in the vertical direction to prevent the spring from lateral displacement during operation). The guide spring 7 is a pagoda structure, and the small end of the guide spring 7 is sleeved and fixed on the boss of the T-shaped spring support 6, and the large end is in contact with the outer circular surface of the valve ball 4.

[0029] As can be seen from the above, the pagoda-shaped structure of the guide spring 7 of the present invention not only facilitates fixation and guidance but also increases the slurry flow area compared to cylindrical springs. During slurry suction, the valve ball 4 rises away from the valve seat 5, and the large end of the guide spring 7 contacts the outer surface of the valve ball 4, pre-tightening the valve ball 4 within the large end of the guide spring 7. The guiding action of the guide spring 7 ensures that the valve ball 4 rises vertically and remains coaxial with the centerline of the valve seat 5. During slurry discharge from the valve block, the valve ball 4 begins to fall due to its own weight and the guiding force of the guide spring 7. However, the large end of the guide spring 7 limits its downward movement and maintains a substantially vertical position.

[0030] Moreover, the utility model installs a limiting bracket 8 on the inner wall of the valve body 3. The limiting bracket 8 consists of an arc limiting platform 801 and a fence 802. The fence 802 is fixed to the inner wall of the valve body 3. There are four arc limiting platforms 801, which are distributed in a circular array on the inner wall of the fence 802; the circular area enclosed by the arc limiting platforms 801 is channel A803, which is used to keep the valve ball 4 from falling vertically. In addition to the channel A803 area, four channels B804 for slurry flow are formed between the arc limiting platforms 801.

[0031] When the valve group is discharging slurry, there are four arc limit platforms 801 evenly distributed in the limit bracket 8, forming a rising and falling channel for the valve ball 4, namely channel A803, which further ensures that the valve ball 4 falls back vertically, so that the landing point of the valve ball 4 coincides with the sealing lip of the valve seat 5, ensuring the sealing performance of the valve group and extending the service life of the valve seat 5. In addition, four channels B804 for slurry flow are formed between the arc limit platforms 801 except the channel A803 area, ensuring that the slurry flows smoothly in the valve group.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A novel valve assembly for grouting equipment, comprising a valve body (3) and a joint (1) arranged on the top of the valve body (3), a valve seat (5) being installed near the bottom of the valve body (3), and a valve ball (4) being movably connected to the valve body (3) above the valve seat (5), characterized in that: An elastic maintaining component is installed on the inner portion of the valve body (3) near the top end; The elastic maintaining assembly includes a guide spring (7) connected to the valve ball (4) at the bottom, and under the guiding action of the guide spring (7), the vertical rise and fall of the valve ball (4) is ensured; A limiting bracket (8) is installed on the inner side wall of the valve body (3); The limiting bracket (8) is composed of an arc limiting platform (801) and a fence (802), wherein the fence (802) is fixed to the inner wall of the valve body (3), and the number of the arc limiting platforms (801) is four, which are distributed in a circular array on the inner wall of the fence (802); the circular area enclosed by the arc limiting platforms (801) is a channel A (803), which is used to keep the valve ball (4) vertically falling back, and four channels B (804) for slurry flow are formed between the arc limiting platforms (801) except the channel A (803) area.

2. A novel valve assembly for grouting equipment according to claim 1, characterized in that: The elastic maintaining assembly further comprises a T-shaped spring support (6), the top of the guide spring (7) is sleeved on and fixed to the boss of the T-shaped spring support (6), and the bottom is connected to the outer circular surface of the valve ball (4).

3. A novel valve assembly for grouting equipment according to claim 2, characterized in that: The guide spring (7) is a pagoda-shaped structure. The small end of the guide spring (7) is sleeved and fixed on the boss of the T-shaped spring support (6), and the large end contacts the outer surface of the valve ball (4).

4. The novel valve assembly for grouting equipment according to claim 1 is characterized in that: The joint (1) is provided with an external thread, and the valve body (3) is provided with an internal thread matching the external thread, and the joint (1) is mounted on the valve body (3) via a rotary joint.

5. The novel valve assembly for grouting equipment according to claim 1 is characterized in that: The valve seat (5) is pressed into the valve body (3) in an interference fit manner.

Images