Fluid connecting piece

Abstract

The invention relates to the technical field of ball valve connection, in particular to a fluid connecting piece which comprises a valve body, a valve ball assembly and a handle, the valve body is provided with a clamping part and a connector, and a locking assembly comprises a positioning rod, a locking rod and a first spring; the locking rod is provided with a locking part and a moving part; the positioning rod is provided with a locking groove, the locking rod comprises a locking part and an abutting part, when the connection of the two valve bodies is released, the handle is rotated to the closing position, the handle drives the positioning rod to reset in the rotating process, the locking groove in the positioning rod moves to the locking part again, at the moment, the valve bodies are rotated reversely, the clamping part is separated from the connector, and the valve bodies are locked. And in the reverse rotation process of the clamping part, the abutting part and the locking part are reset under the action of the first spring, and then the locking part is embedded into the locking groove again, so that the positioning rod and the handle are locked, and the handle is locked under the condition that the two valve bodies are disconnected.

Description

Technical Field

[0001] The invention relates to the technical field of ball valve connection, and in particular to a fluid connector. Background Art

[0002] Ball valve connectors are commonly used fluid connectors in industrial production. After traditional ball valve connectors are connected to pipelines, when the ball valve is closed and the pipeline is filled with fluid, the handle on the valve ball can be easily touched by mistake, causing fluid leakage.

[0003] Prior art CN218031715U discloses a structure for preventing accidental touch of a ball valve, which is arranged on the ball valve and can lock the ball valve in two states: fully open and fully closed. The structure includes a locking device and a positioning groove. The locking device is arranged on the handle and can move synchronously with the handle. The positioning groove corresponds to the locking device and is arranged on the valve body of the ball valve. There are two positioning grooves. When the locking device moves to the first position or above the second position, it can be inserted into the positioning groove at the corresponding position. At this time, the ball valve is in a fully open or fully closed state. The structure for preventing accidental touch can utilize the structure on the handle to avoid accidental touch of the handle, which may cause misoperation of the ball valve.

[0004] The above device can lock the handle to avoid accidental touching, but when the two ball valves are not connected, personnel can still press the handle to unlock it, which increases the risk of accidental touching the handle and causes fluid leakage. Summary of the invention

[0005] The purpose of the present invention is to provide a fluid connector that solves the problem that a person can still press the handle to unlock the existing ball valve anti-accidental touch structure when the two ball valves are not connected, which increases the risk of accidentally touching the handle and causes fluid leakage.

[0006] To achieve the above-mentioned purpose, the present invention provides a fluid connector, including a valve body, a valve ball assembly and a handle, the valve body having a clamping portion and an interface, the valve ball assembly being rotatably arranged inside the valve body, and the on-off of the valve body is controlled by the rotation of the valve ball assembly, the handle being arranged on the valve ball assembly, the handle being provided with an engaging groove, and also including a locking assembly; the locking assembly comprising a positioning rod, a locking rod and a first spring, the positioning rod being slidably connected to the valve body and arranged on the valve body, the positioning rod having an engaging portion and a locking groove, the engaging portion being arranged on a side of the positioning rod close to the engaging groove, the engaging portion being engaged with the engaging groove, the first spring being connected to the valve body and being located inside the valve body, the locking rod being slidably connected to the valve body and being connected to the first spring, and being located at one end of the first spring;

[0007] The locking rod includes a locking portion and an abutment portion. The locking portion is connected to the first spring and is slidably connected to the valve body and is located inside the valve body. The abutment portion is connected to the locking portion and is located at an end of the locking portion away from the first spring. The positioning rod is provided with a locking groove that cooperates with the locking portion.

[0008] Wherein, the locking rod further comprises a guiding portion, which is connected to the locking portion and is located at a side of the locking portion away from the abutting portion.

[0009] Wherein, the fluid connector also includes a sealing ring, which is fixedly connected to the valve body and located on one side of the valve body.

[0010] Among them, the valve ball assembly includes a valve ball and a valve stem, the valve ball is rotatably installed inside the valve body; the valve stem is fixedly connected to the valve ball and to the handle, and is located on the top of the valve ball; the valve ball has a fluid passage, and the fluid passage runs through the valve ball.

[0011] Wherein, the fluid connector further comprises a locking bead and a locking member, wherein the locking bead is slidably connected to the handle and is arranged on the handle; and the locking member is used to lock the locking bead.

[0012] Wherein, the valve body also has a first locking groove and a second locking groove, the first locking groove and the second locking groove respectively correspond to the opening and closing positions of the handle, and the first locking groove and the second locking groove cooperate with the locking bead.

[0013] Wherein, the locking component includes a second spring and a button, and the button is slidably mounted on the handle; two ends of the second spring are respectively connected to the button and the handle, and the second spring is located inside the handle.

[0014] A fluid connector of the present invention, when the two valve bodies are not connected, the handle is in a closed position, at which time the locking groove on the positioning rod is aligned with the locking portion, and at this time the locking portion moves under the action of the first spring and embeds into the locking groove on the positioning rod, and the handle positioning rod is limited and locked by the locking portion, and then the handle is locked, so that when the two valve bodies are not connected, the handle is locked in the closed position and cannot rotate, and when the handle is in the closed position, the valve ball assembly closes the valve body, so that the fluid cannot flow out through the valve body. The fluid connector of the present invention can lock the handle when the two valve bodies are not connected, avoid the risk of accidental touch, and prevent fluid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0016] Figure 1 Schematic diagram of the overall structure of the fluid connector according to the first embodiment of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the positioning hole of the first embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the locking groove of the first embodiment of the present invention.

[0019] Figure 4 The first embodiment of the present invention Figure 3 Enlarged view of point A.

[0020] Figure 5 It is a schematic structural diagram of the meshing groove of the first embodiment of the present invention.

[0021] Figure 6 Schematic diagram of the structure of the valve ball assembly according to the first embodiment of the present invention.

[0022] Figure 7 It is a schematic diagram of the installation structure of the locking rod according to the first embodiment of the present invention.

[0023] Figure 8 4 is a schematic structural diagram of the abutting portion of the first embodiment of the present invention.

[0024] Fig. 9 2 is a schematic structural diagram of a locking member according to a second embodiment of the present invention.

[0025] Fig.10 It is a schematic structural diagram of the first locking groove and the second locking groove of the second embodiment of the present invention.

[0026] In the figure: 101-valve body, 102-valve ball assembly, 103-handle, 104-clamping part, 105-interface, 106-engaging groove, 107-locking assembly, 108-positioning rod, 109-locking rod, 110-first spring, 111-locking part, 112-abutting part, 113-locking groove, 114-positioning hole, 115-guide part, 116-sealing ring, 117-valve ball, 118-valve stem, 119-engaging part, 120-fluid passage, 201-locking bead, 202-locking member, 203-first locking groove, 204-second locking groove, 205-second spring, 206-button, 207-avoidance groove. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0028] First embodiment:

[0029] See also Figures 1 to 8 ,in Figure 1 It is a schematic diagram of the overall structure of the fluid connector. Figure 2 It is a schematic diagram of the structure of the positioning hole. Figure 3 It is a schematic diagram of the structure of the locking groove. Figure 4 yes Figure 3 A magnified image of Figure 5 is a schematic diagram of the structure of the meshing groove. Figure 6 It is a schematic diagram of the structure of the valve ball assembly. Figure 7 This is a schematic diagram of the installation structure of the locking rod. Figure 8 It is a schematic structural diagram of the abutment portion.

[0030] The present invention provides a fluid connector, including a valve body 101, a valve ball assembly 102, a handle 103 and a locking assembly 107, wherein the locking assembly 107 includes a positioning rod 108, a locking rod 109 and a first spring 110, and the locking rod 109 includes a locking portion 111 and an abutting portion 112, and the positioning rod 108 has a locking groove 113, and the abutting portion 112 and the locking portion 111 are pushed to move by the clamping portion 104, so that the locking portion 111 is embedded in the locking groove 113, thereby locking the positioning rod 108, and at this time the handle 103 is locked, so that when the two valve bodies 101 are not connected, the handle 103 is locked to avoid the problem of fluid leakage caused by accidental touch. It can be understood that the above scheme can be used to avoid fluid leakage caused by accidental touch by staff, and can also be used to make the two valve bodies 101 disconnected only when the valve ball assembly 102 is closed.

[0031] With respect to this specific embodiment, the valve body 101 has a clamping portion 104 and an interface 105, the valve ball assembly 102 is rotatably arranged inside the valve body 101, and the on-off of the valve body 101 is controlled by the rotation of the valve ball assembly 102, the handle 103 is arranged on the valve ball assembly 102, and the handle 103 is provided with an engaging groove 106, the interior of the valve body 101 is hollow, and fluid can pass through; when connecting two valve bodies 101, the open ends on the two valve bodies 101 are docked and rotated, so that the clamping portion 104 on one valve body 101 is engaged with the interface 105 on the other valve body 101, and at this time, the two valve bodies 101 can be connected, and the valve ball assembly 102 is driven to rotate by rotating the handle 103, thereby controlling the on-off of a single valve ball 117, and the interface 105 and the clamping portion 104 are the valve body 101 connection structure commonly used in the prior art, and the specific working principle will not be described in detail here.

[0032] The positioning rod 108 is slidably connected to the valve body 101 and is arranged on the valve body 101. The positioning rod 108 has a meshing portion 119 and a locking groove 113. The meshing portion 119 is arranged on a side of the positioning rod 108 close to the meshing groove 106. The meshing portion 119 meshes with the meshing groove 106. The first spring 110 is connected to the valve body 101 and is located inside the valve body 101. The locking rod 109 is slidably connected to the valve body 101 and is connected to the first spring 110 and is located at one end of the first spring 110. The locking portion 111 is connected to the first spring 110 and is slidably connected to the valve body 101 and is located inside the valve body 101. The abutment portion 112 is connected to the first spring 110 and is slidably connected to the valve body 101 and is located inside the valve body 101. The locking portion 111 is connected and is located at one end of the locking portion 111 away from the first spring 110, and a locking groove 113 cooperating with the locking portion 111 is provided on the positioning rod 108; the diameter of the locking portion 111 is greater than the diameter of the abutting portion 112, and the locking portion 111 and the abutting portion 112 are driven to move by the elasticity of the first spring 110, so that the abutting portion 112 can extend out of the valve body 101 and be located at the interface 105 on the valve body 101; due to the meshing relationship between the meshing portion 119 and the meshing groove 106, the positioning rod 108 is driven to move when the handle 103 is rotated, and conversely, when the positioning rod 108 is locked and cannot move, the handle 103 cannot rotate either.

[0033] The installation process is as follows:

[0034] When connecting the two valve bodies 101, the two valve bodies 101 are aligned and rotated so that the clamping parts 104 and the interfaces 105 on the two valve bodies 101 are engaged. During the engagement process of the clamping part 104 and the interface 105, the clamping part 104 rotates and pushes the abutting part 112 extending out of the valve body 101 to move, so that the abutting part 112 drives the locking part 111 to move and compress the first spring 110. At this time, the locking part 111 moves out of the locking groove 113, and the abutting part 112 moves to the locking groove 113. Since the diameter of the abutting part 112 is smaller than that of the locking part 111, the abutting part 112 will not interfere with the movement of the positioning rod 108. At this time, the connection of the two valve bodies 101 is completed, and the positioning rod 108 can move freely, so that the staff can freely rotate the handle 103 and drive the valve ball assembly 102 to rotate to control the on and off of the valve body 101.

[0035] Otherwise the disassembly process is as follows:

[0036] The locking portion 111 is then allowed to re-engage the locking groove 113, thereby locking the positioning rod 108 and the handle 103.

[0037] Further, the positioning hole 114 is disposed on a side of the valve body 101 close to the positioning rod 108 , and the positioning hole 114 cooperates with the positioning rod 108 .

[0038] According to this specific embodiment, when the two valve bodies 101 are connected, the positioning rod 108 on one valve body 101 is aligned with the positioning hole 114 on the other valve body 101, and when the handle 103 is in the closed position, the positioning rod 108 is retracted into the interior of the valve body 101, so that the positioning rod 108 will not interfere with the normal connection of the two valve bodies 101.

[0039] Therefore, when the two valve bodies 101 are connected, the handle 103 is rotated to be in the open position. During the rotation of the handle 103, the engagement groove 106 and the engagement portion 119 are engaged, so that the handle 103 drives the positioning rod 108 to move. The positioning rod 108 extends out of the valve body 101 and extends into the positioning hole 114 on the other valve body 101. At this time, the relative positions of the two valve bodies 101 are fixed, ensuring that the two valve bodies can be disconnected only when the handle 103 is in the closed position.

[0040] Furthermore, the guide portion 115 is connected to the locking portion 111 and is located on a side of the locking portion 111 away from the abutting portion 112 ; the first spring 110 is guided and limited by the guide portion 115 to prevent the first spring 110 from bending and deforming, thereby affecting its use.

[0041] Furthermore, the sealing ring 116 is fixedly connected to the valve body 101 and is located on one side of the valve body 101 .

[0042] According to this specific embodiment, the connection between the two valve bodies 101 is sealed by the sealing ring 116 to improve the sealing effect between the valve bodies 101 .

[0043] Furthermore, the valve ball 117 is rotatably mounted inside the valve body 101 ; the valve stem 118 is fixedly connected to the valve ball 117 , and is fixedly connected to the handle 103 , and is located on the top of the valve ball 117 ; the valve ball 117 has a fluid passage 120 , and the fluid passage 120 runs through the valve ball 117 .

[0044] With respect to this specific embodiment, when the handle 103 is rotated, the handle 103 drives the valve stem 118 and the valve ball 117 to rotate. When the handle 103 is in the open position, the fluid passage 120 is in the same direction as the valve body 101, and the fluid can flow through the fluid passage 120 at this time; when the handle 103 is rotated to the closed position, the fluid passage 120 rotates ninety degrees, and the fluid cannot pass through the fluid passage 120 at this time, thereby achieving the purpose of controlling the on and off of the valve body 101.

[0045] When the fluid connector of this embodiment is used, the connection process is as follows:

[0046] When the two valve bodies 101 are not connected, the handle 103 is in a closed position, and the positioning rod 108 is retracted into the valve body 101, and the locking groove 113 is aligned with the locking portion 111. At this time, the locking portion 111 and the abutting portion 112 are driven to move by the elasticity of the first spring 110, so that the locking portion 111 is embedded in the locking groove 113, and the end of the abutting portion 112 extends out of the valve body 101 and is located at the interface 105. The positioning rod 108 is locked by the locking portion 111, and then the handle 103 is locked, so that when the valve body 101 is not connected, the handle 103 is in a closed position and locked to avoid fluid leakage.

[0047] Otherwise the disassembly process is as follows:

[0048] When the two valve bodies 101 are connected, the clamping portion 104 on one valve body 101 rotates and pushes the abutting portion 112 on the other valve body 101 to move, thereby driving the locking portion 111 to move, so that the locking portion 111 moves out of the corresponding locking groove 113. At this time, the positioning rod 108 is unlocked, and the handle 103 can be rotated. By rotating the handle 103, the valve stem 118 and the valve ball 117 are driven to rotate, thereby opening the valve body 101, and the positioning rod 108 is driven to move during the rotation of the handle 103, so that the positioning rod 108 extends into the positioning hole 114 on the other valve body 101 to position the two valve bodies 101; at the same time, when the two valve bodies 101 are not connected in place, the positioning hole 114 on one valve body 101 and the positioning hole 114 on the other valve body 101 are not connected in place. When the positioning rod 108 on the valve body 101 is not aligned, the positioning rod 108 cannot extend into the positioning hole 114, thereby preventing the handle 103, the valve stem 118 and the valve ball 117 from rotating, thereby preventing the two valve bodies 101 from being opened when the valve bodies 101 are not connected in place and causing fluid leakage; finally, when the valve body 101 is not closed or not completely closed (i.e., the handle 103 is not in the closed position), the positioning rod 108 is not completely retracted into the valve body 101, causing the positioning rod 108 to fully or partially extend into the positioning hole 114 on the other valve body 101, and the two valve bodies 101 cannot rotate. Only after the valve body 101 is completely closed can the two valve bodies 101 rotate to disconnect, thereby preventing the valve body 101 from being disconnected when it is not closed or not completely closed and causing fluid leakage.

[0049] The fluid connector of the present invention can not only lock the handle 103 when the two valve bodies 101 are not connected, but also prevent the handle 103 from being opened when the two valve bodies 101 are not connected in place, and can also prevent the connection between the two valve bodies 101 from being disconnected when the valve bodies 101 are not completely closed, thereby greatly reducing the risk of fluid leakage.

[0050] Second embodiment:

[0051] Based on the first embodiment, please refer to Fig. 9 and Fig.10 , Fig. 9 is a schematic structural diagram of a locking member according to a second embodiment, Fig.10 It is a structural schematic diagram of the first locking groove and the second locking groove of the second embodiment. The fluid connector of this embodiment also includes a locking bead 201 and a locking member 202. The valve body 101 also has a first locking groove 203 and a second locking groove 204. The locking member 202 includes a second spring 205 and a button 206. The button 206 has an avoidance groove 207.

[0052] According to this specific embodiment, the locking bead 201 is slidably connected to the handle 103 and is disposed on the handle 103 ; the locking member 202 is used to lock the locking bead 201 .

[0053] Furthermore, the first locking groove 203 and the second locking groove 204 correspond to the open and closed positions of the handle 103 , respectively, and the first locking groove 203 and the second locking groove 204 cooperate with the locking bead 201 .

[0054] According to this specific embodiment, the first locking groove 203 and the second locking groove 204 are conical, which facilitates the removal of the locking bead 201. The first locking groove 203 and the second locking groove 204 correspond to the open position and the closed position of the handle 103 respectively. When the handle 103 is located at the first locking groove 203, the valve ball 117 is in an open state. When the handle 103 is located at the second locking groove 204, the valve ball 117 is in a closed state.

[0055] Furthermore, the button 206 is slidably mounted on the handle 103 ; two ends of the second spring 205 are respectively connected to the button 206 and the handle 103 , and the second spring 205 is located inside the handle 103 .

[0056] Furthermore, the avoidance groove 207 is arranged on a side of the button 206 close to the locking bead 201, and the button 206 cooperates with the locking bead 201; inclined surfaces are arranged on both sides of the avoidance groove 207, so as to facilitate driving the locking bead 201 to move.

[0057] According to this specific embodiment, the button 206 is driven to move by the elasticity of the second spring 205, so that the end of the button 206 extends out of the handle 103. At this time, the avoidance groove 207 and the locking bead 201 are staggered, so that the button 206 drives the locking bead 201 to move downward, and then the locking bead 201 can extend into the first locking groove 203 or the second locking groove 204. The movement of the locking bead 201 is restricted by the button 206, so that the handle 103 can be in the open or closed position (i.e., the first locking groove 207 is locked). 03 and the second locking groove 204) for locking; when the handle 103 needs to be rotated, the button 206 is pressed to drive the avoidance groove 207 thereon to move, so that the avoidance groove 207 is aligned with the locking bead 201, and then the handle 103 is rotated, and the locking bead 201 can move upward and embed into the avoidance groove 207, and then the handle 103 can be rotated; in this embodiment, the staff needs to press the handle 103 to rotate the handle 103 to change the open or closed state, thereby further avoiding the risk of accidental touch.

[0058] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A fluid connector, comprising a valve body, a valve ball assembly and a handle, wherein the valve body has a clamping portion and an interface, the valve ball assembly is rotatably arranged inside the valve body, and the on-off of the valve body is controlled by the rotation of the valve ball assembly, the handle is arranged on the valve ball assembly, and an engagement groove is arranged on the handle, characterized in that: Also included is a locking assembly; The locking assembly comprises a positioning rod, a locking rod and a first spring, wherein the positioning rod is slidably connected to the valve body and is arranged on the valve body, the positioning rod has a meshing portion and a locking groove, the meshing portion is arranged on a side of the positioning rod close to the meshing groove, the meshing portion meshes with the meshing groove, the first spring is connected to the valve body and is located inside the valve body, and the locking rod is slidably connected to the valve body and is connected to the first spring and is located at one end of the first spring; The locking rod includes a locking portion and an abutment portion. The locking portion is connected to the first spring and is slidably connected to the valve body and is located inside the valve body. The abutment portion is connected to the locking portion and is located at an end of the locking portion away from the first spring. The positioning rod is provided with a locking groove that cooperates with the locking portion.

2. The fluid connector according to claim 1, characterized in that: The locking rod further comprises a guiding portion, which is connected to the locking portion and is located at a side of the locking portion away from the abutting portion.

3. The fluid connector according to claim 1, characterized in that: The fluid connector also includes a sealing ring, which is fixedly connected to the valve body and located on one side of the valve body.

4. The fluid connector according to claim 1, characterized in that: The valve ball assembly includes a valve ball and a valve stem, wherein the valve ball is rotatably mounted inside the valve body; the valve stem is fixedly connected to the valve ball and to the handle, and is located on the top of the valve ball; the valve ball has a fluid passage, and the fluid passage runs through the valve ball.

5. The fluid connector according to claim 1, characterized in that: The fluid connector also includes a locking bead and a locking member. The locking bead is slidably connected to the handle and is arranged on the handle; the locking member is used to lock the locking bead.

6. The fluid connector according to claim 5, characterized in that: The valve body also has a first locking groove and a second locking groove, the first locking groove and the second locking groove respectively correspond to the open and closed positions of the handle, and the first locking groove and the second locking groove cooperate with the locking bead.

7. The fluid connection according to claim 6, characterized in that: The locking component comprises a second spring and a button, wherein the button is slidably mounted on the handle; two ends of the second spring are respectively connected to the button and the handle, and the second spring is located inside the handle.

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