Clamp structure for air detection of dialyzer

Abstract

The utility model relates to the technical field of dialyzer gas detection, and discloses a clamp structure for dialyzer gas detection, which comprises a first pressing block, a second pressing block and a sealing ring, the first pressing block is provided with a fixing part, the fixing part is used for being fixedly connected with a gas detector, and the second pressing block is hinged with the first pressing block; a first through hole is formed in the middle of the first pressing block, the sealing ring is detachably mounted in the first through hole, a second through hole for positioning and inserting a dialyzer is formed in the middle of the second pressing block, and the second through hole is communicated with the first through hole; the second through hole is provided with a stopping part protruding out of the inner side of the first through hole, the stopping part is in compression joint fit with the sealing ring, and the sealing ring is further provided with a sealing edge protruding out of the inner side of the second through hole; a buckle is further arranged between the first pressing block and the second pressing block and provided with a locking position and an unlocking position, the second pressing block is fixed relative to the first pressing block to be connected with the sealing ring in a pressing mode during locking, and the second pressing block can rotate outwards relative to the first pressing block to disassemble the sealing ring during unlocking.

Description

Technical Field

[0001] The utility model relates to the technical field of dialyzer gas detection, in particular to a clamp structure used for dialyzer gas detection. Background Art

[0002] Currently, dialyzers are common clinical medical devices used to replace kidneys. They utilize a dialysis membrane to exchange solutes between blood and dialysate, exchanging or removing metabolic waste and excess electrolytes from the blood, thereby purifying the blood.

[0003] For example, the Chinese utility model patent with authorization announcement number CN210180602U and authorization announcement date 2020.03.24 discloses a dialyzer air tightness detection fixture, which specifically includes a detection platform, a fixed fixture, a fixed cylinder, a tooling clamp, a first elastic clamp, and a second elastic clamp; a fixed cylinder is horizontally provided at each end of the detection platform, the cylinder body of the fixed cylinder is fixedly mounted on the fixed platform, the piston rod end of the fixed cylinder is fixedly mounted with a tooling clamp through a connecting block, and the tooling clamp is mounted with a first elastic clamp, and the two first elastic clamps are respectively connected to the entrance and exit of the blood chamber. An elastic clamp and a silicone sealing gasket are provided in the limiting fixing component, which can perform elastic distance squeezing on the four openings of the dialyzer to avoid damage to the dialyzer due to hard collision and squeezing.

[0004] Existing dialyzer gas detection equipment needs to frequently disassemble and assemble the dialyzer during operation. The sealing ring is easily damaged after being squeezed and used. The operation of replacing the sealing ring is difficult, and the disassembly and assembly downtime is long, resulting in low production efficiency of dialyzer gas detection. Utility Model Content

[0005] The technical problem to be solved by the utility model is that after the sealing ring of the existing dialyzer gas detection equipment is damaged, it is difficult to replace the sealing ring, and the disassembly and assembly downtime is long, resulting in low production efficiency of the dialyzer gas detection.

[0006] In order to solve the above technical problems, the present invention provides a technical solution of a clamp structure for dialyzer gas detection:

[0007] The clamp structure for dialyzer gas detection includes a first pressing block, a second pressing block and a sealing ring. The first pressing block is provided with a fixing portion, the fixing portion is used to be fixedly connected to the gas detection machine, and the second pressing block is hingedly connected to the first pressing block;

[0008] A first through hole is formed in the middle of the first pressing block, and the sealing ring is detachably installed in the first through hole. A second through hole for positioning and inserting the dialyzer is formed in the middle of the second pressing block, and the second through hole is connected to the first through hole.

[0009] The second through hole is provided with a stopper protruding from the inner side of the first through hole, the stopper is press-fitted with the sealing ring, and the sealing ring is further provided with a sealing edge protruding from the inner side of the second through hole;

[0010] A latch is also provided between the first pressing block and the second pressing block, and the latch has a locking position and an unlocking position. When locked, the second pressing block is fixed relative to the first pressing block to press the sealing ring. When unlocked, the second pressing block can be rotated outward relative to the first pressing block to remove the sealing ring.

[0011] Furthermore, a first pressing surface is provided on the side of the first pressing block facing the second pressing block, and a second pressing surface is provided on the side of the second pressing block facing the first pressing block. When locked, the first pressing surface is in contact with the second pressing surface.

[0012] Furthermore, the first pressing block and the second pressing block are both square blocks, a hinge is connected between one side of the first pressing block and one side of the second pressing block, the fastener is arranged on the other side of the first pressing block and the other side of the second pressing block, and the fastener is arranged opposite to the hinge.

[0013] Furthermore, the thickness of the sealing ring is greater than the axial height of the first through hole, and the sealing ring and the first through hole are interference fit.

[0014] Furthermore, two bosses are provided on the side of the second pressing block away from the first pressing block. The two bosses are symmetrically distributed with respect to the second through hole, and the interval between the two bosses constitutes an avoidance space.

[0015] Furthermore, the sides of the two bosses close to the second through hole are both provided with arc-shaped inner walls, which match the inner contour of the second through hole and are used to cooperate with the dialyzer in limiting.

[0016] Furthermore, the fastener includes a hanging ring and a pressing plate, the hanging ring is connected to the first pressing block, the pressing plate is installed on the second pressing block, and the hanging ring is hung and matched with the pressing plate.

[0017] Furthermore, the fastener also includes a first seat plate and a second seat plate, the first seat plate is fixedly installed on the side of the first pressure block, and the hanging ring is hingedly connected to the first seat plate, the second seat plate is fixedly installed on the side of the second pressure block, and the pressing plate is hingedly connected to the second seat plate.

[0018] Furthermore, the fastener includes a hook seat, a hanging ring and a pressing plate, the hook seat is fixedly mounted on the side of the first pressing block, the pressing plate is hingedly mounted on the side of the second pressing block, and the hanging ring is hingedly connected to the pressing plate, the hinge axis of the pressing plate is parallel to the hinge axis of the hanging ring and is arranged in intervals, and the hanging ring is engaged with the hook seat;

[0019] Alternatively, the hook seat is fixedly installed on the side of the second pressure block, the pressing plate is hingedly installed on the side of the first pressure block, and the hanging ring is hingedly connected to the pressing plate, the hinge axis of the pressing plate and the hinge axis of the hanging ring are arranged parallel to and spaced apart from each other, and the hanging ring is hung and coordinated with the hook seat.

[0020] Compared with the prior art, the clamp structure for dialyzer gas testing of the present invention has the following beneficial effects: the clamp structure for dialyzer gas testing adopts a design form of a first pressing block, a second pressing block, a sealing ring and a fastener; the first pressing block is provided with a fixing portion, through which the first pressing block can be fixedly connected to the gas testing machine; specifically, the fixing portion is a bolt hole, which is combined with a fastening bolt installed in the bolt hole, so that the first pressing block can be fixedly connected to the threaded hole of the gas testing machine, thereby ensuring the reliability of the fixed installation of the clamp structure relative to the gas testing machine.

[0021] The second pressure block is hingedly connected to the first pressure block. A first through-hole is provided in the middle of the first pressure block, into which a sealing ring is removably mounted. A second through-hole is provided in the middle of the second pressure block, which is in communication with the first through-hole. The first through-hole of the first pressure block is used to accommodate the sealing ring, while the second through-hole of the second pressure block is used for positioning and inserting the dialyzer. Furthermore, the second through-hole is provided with a stopper protruding from the inner side of the first through-hole. The stopper of the second through-hole can press the sealing ring. That is, the first through-hole and the stopper respectively provide radial limitation and axial constraint for the sealing ring, ensuring the positional stability of the sealing ring in the fixture.

[0022] In addition, the sealing ring is also provided with a sealing edge protruding from the inner side of the second through hole. When the two pressing blocks are locked using the fastener, the second pressing block cooperates with the first pressing block to produce a crimping and fixing effect on the sealing ring, and the sealing edge of the sealing ring is located on the inner side of the second through hole. When the dialyzer is positioned and inserted into the second through hole, the sealing edge forms an extrusion sealing effect on the corresponding interface of the dialyzer. If the sealing ring needs to be replaced, the second pressing block can be rotated outward relative to the first pressing block by unlocking the fastener, thereby releasing the blocking limit of the second pressing block on the sealing ring and facilitating the removal of the sealing ring from the first pressing block. This effectively reduces the difficulty of replacing the sealing ring, shortens the downtime of disassembly and assembly, and ensures the production efficiency of the dialyzer gas detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the working of the clamp structure for dialyzer gas detection in an embodiment of the present utility model;

[0024] Figure 2 1 is a perspective schematic diagram of a clamp structure (first perspective) for dialyzer gas detection in an embodiment of the present invention;

[0025] Figure 3 1 is a perspective schematic diagram of a clamp structure (second viewing angle) for dialyzer gas detection in an embodiment of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of a fixture structure for dialyzer gas detection in an embodiment of the present utility model;

[0027] In the figure: 1-first pressing block, 10-fixing portion, 11-first through hole, 12-first pressing surface, 2-second pressing block, 20-hinge, 21-second through hole, 22-stop portion, 23-second pressing surface, 24-boss, 25-avoidance space, 26-arc-shaped inner wall, 3-sealing ring, 30-sealing edge, 4-fastener, 41-hanging ring, 42-pressing plate, 43-first seat plate, 44-second seat plate, 5-dialyzer. DETAILED DESCRIPTION

[0028] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like used in the present invention to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] like Figures 1 to 4 As shown, a clamp structure for dialyzer gas detection in an embodiment of the present invention includes a first pressing block 1, a second pressing block 2 and a sealing ring 3. The first pressing block 1 is provided with a fixing portion 10, which is used to be fixedly connected to the gas detection machine, and the second pressing block 2 is hingedly connected to the first pressing block 1; a first through hole 11 is provided in the middle of the first pressing block 1, and the sealing ring 3 can be detachably installed in the first through hole 11; a second through hole 21 is provided in the middle of the second pressing block 2 for positioning and inserting the dialyzer 5, and the second through hole 21 is communicated with the first through hole 11.

[0033] The second through hole 21 is provided with a stopper 22 protruding from the inner side of the first through hole 11, and the stopper 22 is press-fitted with the sealing ring 3, and the sealing ring 3 is also provided with a sealing edge 30 protruding from the inner side of the second through hole 21; a snap fastener 4 is also provided between the first pressure block 1 and the second pressure block 2, and the snap fastener 4 has a locking position and an unlocking position. When locked, the second pressure block 2 is fixed relative to the first pressure block 1 to press the sealing ring 3, and when unlocked, the second pressure block 2 can be rotated outward relative to the first pressure block 1 to remove the sealing ring 3.

[0034] The clamp structure for dialyzer gas detection adopts a design form of a first pressure block 1, a second pressure block 2, a sealing ring 3 and a fastener 4. The first pressure block 1 is provided with a fixing portion 10, through which the first pressure block 1 can be fixedly connected to the gas detection machine; specifically, the fixing portion 10 is a bolt hole, which is combined with a fastening bolt to be inserted into the bolt hole, so that the first pressure block 1 can be fixedly connected to the threaded hole of the gas detection machine, ensuring the reliability of the fixed installation of the clamp structure relative to the gas detection machine.

[0035] The second pressing block 2 is hingedly connected to the first pressing block 1. A first through-hole 11 is provided in the middle of the first pressing block 1. The sealing ring 3 is removably installed in the first through-hole 11. A second through-hole 21 is provided in the middle of the second pressing block 2. The second through-hole 21 is arranged in communication with the first through-hole 11. The first through-hole 11 of the first pressing block 1 is used to accommodate the sealing ring 3, while the second through-hole 21 of the second pressing block 2 can be used for positioning and inserting the dialyzer 5. In addition, the second through-hole 21 is provided with a stopper 22 protruding from the inner side of the first through-hole 11. The stopper 22 of the second through-hole 21 can press the sealing ring 3. That is, the first through-hole 11 and the stopper 22 respectively generate radial limitation and axial constraint on the sealing ring 3, ensuring the positional stability of the sealing ring 3 in the fixture.

[0036] In addition, the sealing ring 3 is also provided with a sealing edge 30 protruding from the inner side of the second through hole 21. When the two pressing blocks are locked using the snap fastener 4, the second pressing block 2 cooperates with the first pressing block 1 to produce a crimping and fixing effect on the sealing ring 3, and the sealing edge 30 of the sealing ring 3 is located on the inner side of the second through hole 21. When the dialyzer 5 is positioned and inserted into the second through hole 21, the sealing edge 30 forms an extrusion sealing effect on the corresponding interface of the dialyzer 5. If the sealing ring 3 needs to be replaced, the second pressing block 2 can be rotated outward relative to the first pressing block 1 by unlocking the snap fastener 4, thereby releasing the blocking limit of the second pressing block 2 on the sealing ring 3, making it easier to remove the sealing ring 3 from the first pressing block 1. This effectively reduces the operational difficulty of replacing the sealing ring 3, shortens the disassembly and assembly downtime, and ensures the production efficiency of the dialyzer gas inspection.

[0037] In this embodiment, a first pressing surface 12 is provided on the side of the first pressing block 1 facing the second pressing block 2, and a second pressing surface 23 is provided on the side of the second pressing block 2 facing the first pressing block 1. When locked, the first pressing surface 12 and the second pressing surface 23 are in contact with each other, ensuring that the first pressing block 1 and the second pressing block 2 have a tighter limiting effect on the four sides of the sealing ring 3.

[0038] As a further preferred embodiment, the first pressing block 1 and the second pressing block 2 are both square blocks, a hinge 20 is connected between one side of the first pressing block 1 and one side of the second pressing block 2, and a latch 4 is provided on the other side of the first pressing block 1 and the other side of the second pressing block 2, with the latch 4 and the hinge 20 being arranged opposite each other. The latch 4 and the hinge 20 are arranged opposite each other on the first pressing block 1 or the second pressing block 2, facilitating operations such as locking, unlocking, and rotating the sealing ring 3 when removing and replacing it.

[0039] Specifically, the thickness of the sealing ring 3 is greater than the axial height of the first through hole 11, and the sealing ring 3 is interference fit with the first through hole 11. The sealing ring 3 is designed with a larger thickness, which can form an axial extrusion force when the second pressure block 2 presses the sealing ring 3. The axial pressure of the sealing ring 3 is converted into radial deformation, thereby increasing the radial size of the sealing edge 30 and the sealing effect.

[0040] In this embodiment, two bosses 24 are further provided on the side of the second pressing block 2 away from the first pressing block 1. The two bosses 24 are symmetrically distributed about the second through hole 21. The gap between the two bosses 24 forms an escape space 25. The design of the escape space 25 facilitates the assembly and disassembly of the dialyzer 5 on the fixture. In addition, the sides of the two bosses 24 near the second through hole 21 are each provided with an arc-shaped inner wall 26. The arc-shaped inner wall 26 matches the inner contour of the second through hole 21 and is used to limit the dialyzer 5, thereby improving the accuracy of the dialyzer 5 during gas detection installation.

[0041] In addition, the fastener 4 includes a hanging ring 41 and a pressing plate 42. The hanging ring 41 is connected to the first pressure block 1, and the pressing plate 42 is mounted on the second pressure block 2. The hanging ring 41 and the pressing plate 42 are engaged and matched. Furthermore, the fastener 4 also includes a first seat plate 43 and a second seat plate 44. The first seat plate 43 is fixedly mounted on the side of the first pressure block 1, and the hanging ring 41 is hingedly connected to the first seat plate 43. The second seat plate 44 is fixedly mounted on the side of the second pressure block 2, and the pressing plate 42 is hingedly connected to the second seat plate 44. By rotating the pressing plate 42, the hanging ring 41 can be engaged, secured, or unlocked, achieving the purpose of quickly disassembling the clamp and reliably fixing the sealing ring 3.

[0042] In other embodiments of the present invention, the structural form of the fastener is not limited to the design of the fastener in the above-mentioned embodiment of the utility model. For example, the fastener includes a hook seat, a hanging ring and a pressing plate. The hook seat is fixedly installed on the side of the first pressure block, the pressing plate is hingedly installed on the side of the second pressure block, and the hanging ring is hingedly connected to the pressing plate. The hinge axis of the pressing plate is parallel to the hinge axis of the hanging ring and is arranged at intervals. The hanging ring is engaged with the hook seat. Alternatively, the hook seat is fixedly installed on the side of the second pressure block, the pressing plate is hingedly installed on the side of the first pressure block, and the hanging ring is hingedly connected to the pressing plate. The hinge axis of the pressing plate is parallel to the hinge axis of the hanging ring and is arranged at intervals. The hanging ring is engaged with the hook seat. This can also achieve the purpose of quickly disassembling the clamp and reliably fixing the sealing ring.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A fixture structure for dialyzer gas detection, characterized in that: It includes a first pressing block, a second pressing block and a sealing ring, wherein the first pressing block is provided with a fixing portion, the fixing portion is used to be fixedly connected to the gas detection machine, and the second pressing block is hingedly connected to the first pressing block; A first through hole is formed in the middle of the first pressing block, and the sealing ring is detachably installed in the first through hole. A second through hole for positioning and inserting the dialyzer is formed in the middle of the second pressing block, and the second through hole is connected to the first through hole. The second through hole is provided with a stopper protruding from the inner side of the first through hole, the stopper is press-fitted with the sealing ring, and the sealing ring is further provided with a sealing edge protruding from the inner side of the second through hole; A latch is also provided between the first pressing block and the second pressing block, and the latch has a locking position and an unlocking position. When locked, the second pressing block is fixed relative to the first pressing block to press the sealing ring. When unlocked, the second pressing block can be rotated outward relative to the first pressing block to remove the sealing ring.

2. The fixture structure for dialyzer gas detection according to claim 1 is characterized in that: The first pressing block has a first pressing surface on the side facing the second pressing block, and the second pressing block has a second pressing surface on the side facing the first pressing block. When locked, the first pressing surface is in contact with the second pressing surface.

3. The fixture structure for dialyzer gas detection according to claim 2, characterized in that: The first pressing block and the second pressing block are both square blocks, a hinge is connected between one side of the first pressing block and one side of the second pressing block, the fastener is arranged on the other side of the first pressing block and the other side of the second pressing block, and the fastener is arranged opposite to the hinge.

4. The fixture structure for dialyzer gas detection according to claim 1, characterized in that: The thickness of the sealing ring is greater than the axial height of the first through hole, and the sealing ring and the first through hole are interference fit.

5. The fixture structure for dialyzer gas detection according to claim 1, characterized in that: Two bosses are further provided on the side of the second pressing block away from the first pressing block. The two bosses are symmetrically distributed about the second through hole, and the interval between the two bosses constitutes an avoidance space.

6. The fixture structure for dialyzer gas detection according to claim 5, characterized in that: The sides of the two bosses close to the second through hole are both provided with arc-shaped inner walls, which match the inner contour of the second through hole and are used for limiting cooperation with the dialyzer.

7. The fixture structure for dialyzer gas detection according to claim 1, characterized in that: The fastener includes a hanging ring and a pressing plate, the hanging ring is connected to the first pressing block, the pressing plate is installed on the second pressing block, and the hanging ring is hung and matched with the pressing plate.

8. The fixture structure for dialyzer gas detection according to claim 7, characterized in that: The fastener also includes a first seat plate and a second seat plate, the first seat plate is fixedly installed on the side of the first pressure block, and the hanging ring is hingedly connected to the first seat plate, the second seat plate is fixedly installed on the side of the second pressure block, and the pressing plate is hingedly connected to the second seat plate.

9. The fixture structure for dialyzer gas detection according to claim 1, characterized in that: The fastener includes a hook seat, a hanging ring and a pressing plate, wherein the hook seat is fixedly mounted on the side of the first pressing block, the pressing plate is hingedly mounted on the side of the second pressing block, and the hanging ring is hingedly connected to the pressing plate, the hinge axis of the pressing plate is parallel to the hinge axis of the hanging ring and is spaced apart, and the hanging ring is engaged with the hook seat; Alternatively, the hook seat is fixedly installed on the side of the second pressure block, the pressing plate is hingedly installed on the side of the first pressure block, and the hanging ring is hingedly connected to the pressing plate, the hinge axis of the pressing plate and the hinge axis of the hanging ring are arranged parallel to and spaced apart from each other, and the hanging ring is hung and coordinated with the hook seat.

Images