Opening type friction-free ball valve with upper limiting device

Abstract

The utility model relates to the technical field of ball valves, in particular to a distraction type friction-free ball valve with an upper limiting device, which comprises a distraction type friction-free ball valve body. The valve rod is rotationally installed at the top of the opening type friction-free ball valve body and used for controlling opening and closing of the opening type friction-free ball valve body, and a valve handle is fixedly installed at the top of the valve rod; the annular fixing piece is fixedly installed at the upper end of the opening type friction-free ball valve body in a sleeving mode. When the valve handle is rotated, the right-angle limiting block is used for blocking the right-angle limiting rod on the valve handle, the opening angle of the opening type friction-free ball valve body can be limited, the situation that a ball body is damaged due to the fact that the angle of manually rotating the valve handle is too large is avoided, and therefore safe operation of the opening type friction-free ball valve body is guaranteed. And meanwhile, the position of the right-angle limiting block can be adjusted, so that the maximum opening angle of the opening type friction-free ball valve body is adjusted, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a spread-out frictionless ball valve with an upper limit device. Background Technology

[0002] Spread-type frictionless ball valves are primarily used to control fluid flow. Compared to traditional ball valves, they offer superior sealing performance and wear resistance, making them suitable for industrial applications requiring high precision and durability.

[0003] Existing openable frictionless ball valves are usually controlled by manually turning the valve handle directly when opened. However, during manual turning, the force is difficult to control and there is no limiting device, which can easily lead to the ball being damaged by turning the valve handle too much, thus reducing its practicality. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the background art by proposing a spreading frictionless ball valve with an upper limit device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A frictionless ball valve with an upper limit device, comprising:

[0007] Spread-out frictionless ball valve body;

[0008] A valve stem is rotatably mounted on the top of the openable frictionless ball valve body and is used to control the opening and closing of the openable frictionless ball valve body. A valve handle is fixedly mounted on the top of the valve stem.

[0009] An annular fastener is fixedly sleeved and installed on the upper end of the body of the spread-out frictionless ball valve;

[0010] The limiting assembly includes a right-angle limiting rod fixedly installed at the end of the valve handle, a fixing block fixedly installed on the top of the annular fixing member, and an annular adjusting block movably sleeved on the side of the annular fixing member, and a right-angle limiting block fixedly installed on the top of the annular adjusting block;

[0011] Adjustment component for rotating the position of the right-angle limit block.

[0012] Preferably, the adjustment assembly includes a screw threaded through the side of the annular adjustment block for fixed installation. The side of the annular fixing member is provided with an annular groove, which is slidably connected to the annular adjustment block. The surface of the annular groove is provided with multiple threaded grooves, which are distributed in a circumferential array and are threadedly connected to or separated from the screw.

[0013] Preferably, the inner diameter of the annular groove is equal to the inner diameter of the annular adjusting block.

[0014] Preferably, the right-angle limiting rod is located between the fixing block and the right-angle limiting block, and the inner bottom of the right-angle limiting block slides against the top of the annular fixing member.

[0015] Preferably, a knob is fixedly installed at the end of the screw, and multiple protrusions are fixedly installed on the side of the knob.

[0016] Compared with existing technologies, the advantages of the frictionless ball valve with upper limit device provided by this utility model are as follows:

[0017] 1. When the device is opened, the right-angle limit rod is rotated by rotating the valve handle. When the right-angle limit rod contacts the right-angle limit block, the right-angle limit block will prevent the valve handle from continuing to rotate clockwise, thereby limiting the opening angle of the openable frictionless ball valve body. This can prevent the ball from being damaged by manually rotating the valve handle too much, thus ensuring the safe operation of the openable frictionless ball valve body and improving the practicality of the device.

[0018] 2. By turning the screw to disengage it from the corresponding thread groove, and then by turning the screw to rotate the annular adjusting block in the annular slot, the position of the annular adjusting block can be fixed, thereby realizing the position adjustment of the right angle limit block to adjust the maximum opening angle of the body of the spread-out frictionless ball valve.

[0019] In summary, this utility model, by using a right-angle limiting block to block the right-angle limiting rod on the valve handle when the valve handle is rotated, can limit the opening angle of the body of the spread-open frictionless ball valve, preventing damage to the ball from excessive manual rotation of the valve handle, thereby ensuring the safe operation of the body of the spread-open frictionless ball valve. At the same time, the position of the right-angle limiting block can be adjusted to adjust the maximum opening angle of the body of the spread-open frictionless ball valve, thus improving the practicality of the device. Attached Figure Description

[0020] Figure 1 This is a first-view structural diagram of a frictionless ball valve with an upper limit device proposed in this utility model.

[0021] Figure 2 This is a second-view structural diagram of a frictionless ball valve with an upper limit device proposed in this utility model.

[0022] Figure 3 This is a partial exploded structural diagram of a frictionless ball valve with an upper limit device proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a frictionless ball valve with an upper limit device that is rotated and then contacts the right-angle limit rod with the right-angle limit block.

[0024] In the diagram: 1. Spread-out frictionless ball valve body, 2. Valve stem, 3. Valve handle, 4. Annular fixing part, 5. Annular adjusting block, 6. Annular groove, 7. Screw, 8. Threaded groove, 9. Right-angle limit block, 10. Fixing block, 11. Right-angle limit rod, 12. Knob. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1 to 4 A frictionless ball valve with an upper limit device, comprising:

[0027] The valve body 1 is a sliding frictionless ball valve; the valve stem 2 is rotatably mounted on the top of the sliding frictionless ball valve body 1 and is used to control the opening and closing of the sliding frictionless ball valve body 1. The valve handle 3 is fixedly mounted on the top of the valve stem 2; the annular fastener 4 is fixedly sleeved and mounted on the upper end of the sliding frictionless ball valve body 1.

[0028] The limiting assembly includes a right-angle limiting rod 11 fixedly installed at the end of the valve handle 3, a fixing block 10 fixedly installed on the top of the annular fixing member 4, and an annular adjusting block 5 movably fitted on the side of the annular fixing member 4. A right-angle limiting block 9 is fixedly installed on the top of the annular adjusting block 5. The right-angle limiting rod 11 is located between the fixing block 10 and the right-angle limiting block 9, and the inner bottom of the right-angle limiting block 9 slides against the top of the annular fixing member 4. Figure 1 In the middle state, the body 1 of the spread-open frictionless ball valve is in a completely sealed state, that is, the right-angle limit rod 11 abuts against the fixed block 10. When the operator opens the body 1 of the spread-open frictionless ball valve, the valve handle 3 is rotated clockwise, which drives the right-angle limit rod 11 to rotate together. When the right-angle limit rod 11 contacts the right-angle limit block 9, the right-angle limit block 9 will prevent the valve handle 3 from continuing to rotate clockwise, so as to limit the opening angle of the body 1 of the spread-open frictionless ball valve. This can prevent the ball from being damaged by manually rotating the valve handle 3 too much, thereby ensuring the safe operation of the body 1 of the spread-open frictionless ball valve.

[0029] The adjustment component is used to rotate the position of the right-angle limiting block 9. The adjustment component includes a screw 7 that is fixedly installed and threaded through the side of the annular adjustment block 5. The side of the annular fixing member 4 is provided with an annular groove 6. The annular groove 6 is slidably connected to the annular adjustment block 5. The inner diameter of the annular groove 6 is equal to the inner diameter of the annular adjustment block 5, which plays a supporting and limiting role for the annular adjustment block 5, so that the annular adjustment block 5 will not detach from the annular groove 6 or shake.

[0030] The surface of the annular groove 6 is provided with multiple threaded grooves 8, which are arranged in a circumferential array and are threadedly connected to or separated from the screw 7. When it is necessary to adjust the maximum opening angle of the spread-opening frictionless ball valve body 1, the screw 7 can be turned to disengage it from the corresponding threaded groove 8. After disengagement, the annular adjusting block 5 can be rotated in the annular groove 6 by the screw 7 until the right-angle limit block 9 is rotated to the specified position. Then, the screw 7 can be turned in the opposite direction to screw it into the specified threaded groove 8, thereby fixing the position of the annular adjusting block 5 and adjusting the position of the right-angle limit block 9 to adjust the maximum opening angle of the spread-opening frictionless ball valve body 1.

[0031] Furthermore, a knob 12 is fixedly installed at the end of the screw 7, and multiple protrusions are fixedly installed on the side of the knob 12, which facilitates the operator to control the rotation of the screw 7.

[0032] The working principle of this utility model is as follows:

[0033] Before use, the operator should screw the screw 7 to disengage it from the corresponding threaded groove 8. After disengagement, the operator should then use the screw 7 to rotate the annular adjusting block 5 within the annular groove 6. Then, according to actual needs, until the right-angle limit block 9 is rotated and moved to the designated position, the operator should reverse the screw 7 to screw it into the designated threaded groove 8. This will fix the position of the annular adjusting block 5, thereby adjusting the position of the right-angle limit block 9 to adjust the maximum opening angle of the spread-out frictionless ball valve body 1.

[0034] When in use, rotating the valve handle 3 clockwise causes the right-angle limit rod 11 to rotate together. When the right-angle limit rod 11 contacts the right-angle limit block 9, the right-angle limit block 9 will prevent the valve handle 3 from continuing to rotate clockwise, thereby limiting the opening angle of the openable frictionless ball valve body 1 and preventing the ball from being damaged by manually rotating the valve handle 3 too much.

[0035] After use, turn the valve handle 3 counterclockwise until the right-angle limit rod 11 contacts the fixed block 10 to complete the sealing of the body 1 of the spread-out frictionless ball valve.

[0036] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A frictionless ball valve with an upper limit device, characterized in that, include: Spread-out frictionless ball valve body (1); The valve stem (2) is rotatably mounted on the top of the openable frictionless ball valve body (1) and is used to control the opening and closing of the openable frictionless ball valve body (1). The valve handle (3) is fixedly mounted on the top of the valve stem (2). An annular fastener (4) is fixedly sleeved and installed on the upper end of the openable frictionless ball valve body (1); The limiting assembly includes a right-angle limiting rod (11) fixedly installed at the end of the valve handle (3), a fixing block (10) fixedly installed on the top of the annular fixing member (4), and an annular adjusting block (5) movably sleeved on the side of the annular fixing member (4), and a right-angle limiting block (9) fixedly installed on the top of the annular adjusting block (5). Adjustment component for rotating the position of right angle limit block (9).

2. The frictionless ball valve with upper limit device according to claim 1, characterized in that, The adjustment assembly includes a screw (7) that is fixedly installed with a thread through the side of the annular adjustment block (5). The side of the annular fastener (4) is provided with an annular groove (6). The annular groove (6) is slidably connected to the annular adjustment block (5). The surface of the annular groove (6) is provided with multiple threaded grooves (8), and the multiple threaded grooves (8) are distributed in a circumferential array and are threadedly connected to or separated from the screw (7).

3. A frictionless ball valve with an upper limit device according to claim 2, characterized in that, The inner diameter of the annular groove (6) is equal to the inner diameter of the annular adjusting block (5).

4. A frictionless ball valve with an upper limit device according to claim 1, characterized in that, The right-angle limiting rod (11) is located between the fixing block (10) and the right-angle limiting block (9), and the inner bottom of the right-angle limiting block (9) slides against the top of the annular fixing member (4).

5. A frictionless ball valve with an upper limit device according to claim 2, characterized in that, A knob (12) is fixedly installed at the end of the screw (7), and multiple protrusions are fixedly installed on the side of the knob (12).

Images