Pipe body pressure detection valve

Abstract

The utility model discloses a pipe body pressure detection valve, which belongs to the field of medical instruments, and comprises a shell, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor and a pressure sensor, and is characterized in that the shell comprises a first end and a second end between which an embedding space and an occlusion channel are arranged; and the cover body is connected with the shell. By means of the arrangement, the pipeline pressure detection device can clamp a pipeline to be detected placed in the occlusion channel, does not need to be provided with an additional fixing structure, facilitates rapid combination of the pipeline and the detection valve when in use, and is simple and labor-saving to operate, thereby solving the problems that an existing pipeline pressure detection device is inconvenient to combine and complex to assemble and disassemble when in use.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a pipe pressure detection valve. Background Art

[0002] Human adipose tissue is a connective tissue mainly composed of clustered fat cells and supported by loose connective tissue. Adipose tissue, like bone marrow and other tissues, is separated from human mesenchymal tissue and is rich in an easily separable matrix. Since 2008, Chinese clinicians have begun to use adipose-derived concentrated cell groups in combination with autologous fat for facial rejuvenation, scar treatment, and breast reconstruction to improve the survival rate of the graft in the recipient area. In recent years, as adipose-derived regenerative cell groups mixed with fat for transplantation have become a common clinical operation, a variety of operating methods for processing fat and adipose-derived regenerative cells have been derived. In the process of processing fat and adipose-derived regenerative cells, it is necessary to use pipelines to transport materials such as liquids and fats, and the pipeline pressure needs to be detected during the transportation process. At present, when testing the pipeline pressure, it is necessary to connect the pipeline pressure detection device to the pipeline to be detected by fixing it, the purpose of which is to prevent the pipeline from moving relative to the pipeline pressure detection device during use and affecting its detection accuracy. However, the combined assembly of the pipeline and the pipeline pressure detection device is complicated, and the pressure sensor is easily damaged when the pressure detection device is fastened by bolts or the like.

[0003] Therefore, a pipeline pressure detection device which is simple to use and quick to install is designed. The pressure detection device is specifically a pipe pressure detection valve. Utility Model Content

[0004] In order to overcome the problems raised in the background technology, the utility model adopts the following technical solutions:

[0005] A pipe pressure detection valve comprises: a shell, which comprises a first end and a second end, wherein an insertion space and a bite channel are provided between the first end and the second end; and a cover body connected to the shell.

[0006] Furthermore, a placement cavity 1 is provided at one end of the shell body facing the cover body, and a pressure sensor is connected in the placement cavity 1.

[0007] Furthermore, a detection channel is provided between the placement cavity 1 and the bite channel, and the pressure sensor has a strain gauge, which is abutted against one end of the detection channel connected to the placement cavity 1, and the end of the strain gauge facing the bite channel is tangent to the inner wall contour of the bite channel, so that after the pipeline enters the bite channel, its outer wall will contact and squeeze the strain gauge. The bite channel is cylindrical, and the pipeline clamped in the bite channel contacts and squeezes the strain gauge when expanding outward, so that the strain gauge produces a micro displacement, and affects the resistance value of the amplification circuit in the pressure sensor, thereby causing the analog signal output by the pressure sensor to change.

[0008] Furthermore, a buffer member 1 is disposed at one end of the shell body facing the cover body, and the buffer member 1 surrounds the placement cavity 1.

[0009] Furthermore, the external pipe enters the bite channel after passing through the insertion space, and the second end has a slope facing one end of the insertion space. Along the direction away from the bite channel, the distance between the slope and the first end gradually increases, so that the user can quickly place the pipe to be tested into the insertion space. After the pipe to be tested enters the bite channel, there is no need to set up an additional fixing structure, which is conducive to the rapid combination of the pipe and the detection valve during use, and the operation is simple and effortless.

[0010] Furthermore, a limiting flange is provided between the bite channel and the insertion space. After the pipe enters the bite channel through the insertion space, the limiting flange engages with the outer wall of the pipe to prevent the pipe from popping out of the bite channel.

[0011] Furthermore, a second placement cavity is provided at one end of the shell body away from the cover body.

[0012] Furthermore, a second buffer member is disposed at one end of the shell body away from the cover body, and the second buffer member surrounds the second placement cavity.

[0013] Furthermore, a transmission channel is provided between the first placement cavity and the second placement cavity.

[0014] Furthermore, the sensor is connected to a lead wire, one end of which is connected to the pressure sensor, and the other end of which passes through the transmission channel and is separated from the placement cavity 2. When in use, one end of the housing provided with the placement cavity 2 is connected to an external device, and when the lead wire is too long, the excess part of the lead wire can be accommodated inside the placement cavity 2.

[0015] Beneficial effects of the utility model:

[0016] 1. By setting an insertion space, a bite channel and a limit flange between the first end and the second end, the pipeline to be tested can enter the bite channel through its own deformation, and after entering the bite channel, the position is limited by the limit flange, so there is no need to set an additional fixing structure, which is conducive to the rapid combination of the pipeline and the detection valve, and the operation is simple and effortless, with excellent practical effect.

[0017] 2. By setting up the placement cavity and the detection channel, the strain gauge can generate micro-displacement when the pipe to be tested that is sleeved in the detection channel expands, so that the pressure sensor outputs an analog signal based on the pressure. After entering the occlusal channel, the pipe to be tested restores the pipe wall state before being squeezed by the external force, and will not squeeze the strain gauge together with the external force, thereby avoiding damage to the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model at one angle when the cover body is not assembled;

[0021] Figure 3 This is a schematic diagram of the overall structure of the utility model from another angle when the cover is not assembled

[0022] Figure 4 for Figure 1 A schematic cross-sectional structure diagram of ;

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0024] In the figure, 1. shell; 11. first end; 12. second end; 13. insertion space; 131. limiting flange; 14. engagement channel; 15. placement cavity 1; 151. buffer component 1; 16. detection channel; 17. transmission channel; 18. placement cavity 2; 181. buffer component 2; 2. pressure sensor; 21. strain gauge; 22. lead wire; 3. cover. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model are clearly and completely described below through specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Those skilled in the art can easily understand other advantages and functions of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] A pipe pressure detection valve, such as Figure 1-5 As shown, it comprises: a housing 1, which comprises a first end 11 and a second end 12, and a placement space 13 and a bite channel 14 are provided between the first end 11 and the second end 12; and a cover 3, which is connected to the housing 1. When in use, the pipeline to be tested can enter the bite channel 14 by its own deformation, and after entering the bite channel 14, the position is limited by the limiting flange 131, so that there is no need to set an additional fixing structure, which simplifies the operation steps and facilitates the rapid combination of the pipeline and the detection valve.

[0027] In some embodiments of the present application, Figure 1-5 As shown, a placement cavity 15 is provided at one end of the shell 1 facing the cover 3. Before placement, a pressure sensor 2 is connected in the placement cavity 15. A buffer 151 is also provided at one end of the shell 1 facing the cover 3. The buffer 151 is made of rubber and surrounds the placement cavity 15. It is used to squeeze the cover 3 before the cover 3 contacts the outer wall of the shell 1, thereby avoiding wear between the shell 1 and the cover 3 at the contact position, and preventing the fluid from entering the interior of the placement cavity 15 through the gap between the shell 1 and the cover 3, thereby having an excellent waterproof effect. The cover 3 is rotatably hinged with the shell 1, or the cover 3 is threadedly connected with the shell 1. When the cover 3 is threadedly connected with the shell 1, the pressure generated when the cover 3 moves toward the outer wall of the shell 1 and contacts the buffer 151 can be evenly distributed on various parts of the buffer 151, which can extend the service life of the buffer 151.

[0028] In some embodiments of the present application, Figure 1-5As shown, a detection channel 16 is provided between the placement cavity 15 and the bite channel 14, and the pressure sensor 2 has a strain gauge 21, which abuts against one end of the detection channel 16 connected to the placement cavity 15, and the end of the strain gauge 21 facing the bite channel 14 is tangent to the inner wall contour of the bite channel 14, so that after the pipeline enters the bite channel 14, its outer wall will contact and squeeze the strain gauge 21. The bite channel 14 is cylindrical, and the pipeline clamped in the bite channel 14 contacts and squeezes the strain gauge 21 when expanding outward, so that the strain gauge 21 produces a micro displacement, and affects the resistance value of the amplification circuit in the pressure sensor 2, thereby causing the analog signal output by the pressure sensor 2 to change. Specifically, the pipeline to be tested is an elastic hose, the outer diameter of the hose is not less than 3mm, and the inner diameter of the bite channel 14 is not less than 3mm.

[0029] In other embodiments of the present application, the distance between the side wall of the strain gauge 21 facing the bite channel 14 and the central axis of the bite channel 14 is not greater than 50% of the inner diameter of the bite channel 14. This allows the pressure sensor 2 to output an initial pressure by squeezing the strain gauge 21 when the pipe to be tested enters the bite channel 14. In subsequent use, when the internal pressure of the pipe to be tested changes, its outer wall will shrink or expand. At this time, the force applied to the strain gauge 21 by the pipe to be tested will become smaller or larger. The pressure sensor 2 outputs an analog signal corresponding to the pressure according to the micro-displacement of the strain gauge 21, thereby realizing the detection of pressure changes of the clamped pipe.

[0030] In some embodiments of the present application, Figure 1-5 As shown, the external pipe enters the bite channel 14 after passing through the insertion space 13, and the second end 12 has a slope at one end facing the insertion space 13. Along the direction away from the bite channel 14, the distance between the slope and the first end 11 gradually increases, so that the user can quickly place the pipe to be tested into the insertion space 13. After the pipe to be tested enters the bite channel 14, there is no need to set up an additional fixing structure, which is conducive to the rapid combination of the pipe and the detection valve during use, and the operation is simple and effortless.

[0031] In some embodiments of the present application, Figure 1-5 As shown, there is a limiting flange 131 between the bite channel 14 and the insertion space 13. After the pipe enters the bite channel 14 through the insertion space 13, the limiting flange 131 engages with the outer wall of the pipe to prevent the pipe from falling off or popping out of the bite channel 14.

[0032] In some embodiments of the present application, Figure 1-5 As shown, a second placement cavity 18 is disposed at one end of the housing 1 away from the cover 3, and a second buffer 181 is disposed at one end of the housing 1 away from the cover 3. The second buffer 181 surrounds the second placement cavity 18. A transmission channel 17 is disposed between the first placement cavity 15 and the second placement cavity 18.

[0033] In some embodiments of the present application, Figure 1-5 As shown, the sensor is connected with a lead wire 22, one end of which is connected to the pressure sensor 2, and the other end of which passes through the transmission channel 17 and is separated from the placement cavity 18. When in use, one end of the housing 1 provided with the placement cavity 18 is connected to an external device through a bolt or a slot; the end of the lead wire 22 away from the placement cavity 15 is connected to an external device or system, and when connected, the buffer 2 181 is squeezed between the housing 1 and the external device, thereby preventing the surface of the housing 1 and the external device from being worn. When the lead wire 22 is too long and has a part that can move freely, this part of the lead wire 22 can be accommodated inside the placement cavity 18, thereby reducing the wear of this part of the wire. After the lead wire 22 is connected to the external device or system, the analog signal output by the pressure sensor 2 can be used to determine whether the hose is leaking, blocked or other possible situations when conveying materials.

[0034] When in use, the part of the pipe to be tested is moved toward the bite channel 14 with its central axis parallel to the central axis of the bite channel 14, so that the pipe to be tested enters the insertion space 13 and, driven by an external force, passes over the limiting flange 131 and is sleeved into the bite channel 14. After the external force is removed, the pipe to be tested itself cannot escape from the bite channel 14 through the limiting flange 131, thereby completing the fixation of the pipe to be tested. This process is simple to operate and will not cause damage to the pressure sensor 2.

Claims

1. A pipe pressure detection valve, characterized in that: include: The shell includes a first end and a second end, wherein an insertion space and a bite channel are formed between the first end and the second end; A cover connected to the housing The housing is provided with a first placement cavity at one end facing the cover body, and a pressure sensor is connected in the first placement cavity; A detection channel is provided between the placement cavity 1 and the bite channel, and the pressure sensor has a strain gauge, which abuts against one end of the detection channel connected to the placement cavity 1, and one end of the strain gauge facing the bite channel is tangent to the inner wall contour of the bite channel.

2. A pipe pressure detection valve according to claim 1, characterized in that: A buffer member 1 is disposed at one end of the shell body facing the cover body.

3. A pipe pressure detection valve according to claim 1, characterized in that: A limiting flange is provided between the engaging channel and the insertion space.

4. A pipe pressure detection valve according to claim 2, characterized in that: A second placement cavity is arranged at one end of the shell body away from the cover body.

5. A pipe pressure detection valve according to claim 4, characterized in that: A second buffer is arranged at one end of the shell body away from the cover body.

6. A pipe pressure detection valve according to claim 5, characterized in that: A transmission channel is provided between the first placement cavity and the second placement cavity.

7. A pipe pressure detection valve according to claim 6, characterized in that: The sensor is connected with a lead wire.

8. A pipe pressure detection valve according to claim 7, characterized in that: One end of the lead wire is connected to the pressure sensor, and the other end of the lead wire passes through the transmission channel and is separated from the placement cavity 2.

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