Monocrystalline silicon pressure transmitter

Abstract

The utility model relates to the technical field of pressure transmitters, in particular to a monocrystalline silicon pressure transmitter. Comprising a base, a pressure transmitter body and an auxiliary device, the auxiliary device comprises a threaded cylinder, a sliding rod, an action spring, an auxiliary disc and a plug pin, the auxiliary disc is provided with a locking part, when the pressure transmitter body is disassembled, the plug pin is pulled out firstly, then the pressure transmitter body is rotated anticlockwise, the auxiliary disc is driven to rotate at the moment, and the pressure transmitter body is disassembled. When the locking part is located at the matching position of the bottom of the sliding groove and the inlet of the locking groove, the action spring is released to push the sliding rod to slide, so that the auxiliary disc is pushed to slide upwards, the pressure transmitter body can be driven to move upwards, and finally the pressure transmitter body is directly taken out to complete disassembly, so that the bolt disassembly amount is greatly reduced, and the disassembly efficiency is improved. Therefore, when the monocrystalline silicon pressure transmitter is disassembled and maintained, the monocrystalline silicon pressure transmitter can be quickly disassembled and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitters, in particular to a single crystal silicon pressure transmitter. Background Art

[0002] A pressure transmitter is a device that can convert pressure into pneumatic or electric signals for control and remote transmission. It can convert physical pressure parameters such as gas and liquid sensed by the pressure measuring element sensor into standard electrical signals to supply secondary instruments such as indicator alarms, recorders, regulators, etc. for measurement, indication and process regulation. It is widely used in industrial equipment.

[0003] The single crystal silicon resistance pressure transmitter is used to measure the liquid level, density and pressure of liquid, gas or steam, and then convert it into 4-20mA HART current signal output. It can also communicate with HART375 or BSTModem to set parameters and control the process.

[0004] Existing single crystal silicon resistive pressure transmitters are usually fixedly connected to a mounting base by bolts, and then the mounting base is fixed to an equipment instrument or pipeline. Since the single crystal silicon resistive pressure transmitter is connected to the mounting base by bolts, when the single crystal silicon resistive pressure transmitter needs to be disassembled and repaired, it is necessary to repeatedly turn multiple bolts to achieve disassembly between the mounting base and the single crystal silicon resistive pressure transmitter, which makes the disassembly steps cumbersome and troublesome. Utility Model Content

[0005] The utility model aims to provide a single crystal silicon pressure transmitter, which is conducive to the rapid disassembly and maintenance of the single crystal silicon pressure transmitter when the single crystal silicon pressure transmitter is disassembled and maintained.

[0006] To achieve the above object, the utility model provides a single crystal silicon pressure transmitter, comprising a base and a pressure transmitter body, the base having a slide groove and a locking groove, the locking groove being connected to the slide groove, the pressure transmitter body being located above the base, and further comprising an auxiliary device;

[0007] The auxiliary device includes a threaded barrel, a sliding rod, an action spring, an auxiliary disk and a latch. The threaded barrel is threadedly connected to the base and is located in the base. The sliding rod is slidably connected to the threaded barrel and is located on the threaded barrel. One end of the action spring abuts the base, and the other end of the action spring abuts the sliding rod. The action spring is located in the threaded barrel. The auxiliary disk has a locking portion, and the locking portion can slide in the sliding groove and the locking groove respectively. The auxiliary disk is slidably connected to the base and fixedly connected to the pressure transmitter body and is located on the side of the base close to the sliding rod. The latch is slidably connected to the base and slidably connected to the auxiliary disk and is located on the side of the base close to the auxiliary disk.

[0008] Wherein, a display screen is arranged on the pressure transmitter body.

[0009] Wherein, the threaded barrel has a hexagonal clamping portion, and the hexagonal clamping portion is located at the top of the threaded barrel.

[0010] Wherein, the auxiliary device also includes a pull ring and a shock-absorbing rubber pad, the pull ring is integrally formed with the latch and is located at the top of the latch; the shock-absorbing rubber pad is fixedly connected to the base and is located at the bottom of the base.

[0011] Wherein, the auxiliary device also includes a sliding block and a magnet. The sliding block is detachably connected to the base and is located in the sliding groove; the magnet is fixedly connected to the sliding block and is located on a side of the sliding block close to the base.

[0012] The utility model discloses a single crystal silicon pressure transmitter, wherein the base is provided with a slide groove and a locking groove, the shell of the pressure transmitter body is installed on the auxiliary disk, the auxiliary disk is provided with a locking part, the locking part can slide in the slide groove and the locking groove, the threaded tube is installed in the base, and the two are arranged in a ring shape with a 120° interval, the slide bar is T-shaped and can slide in the threaded tube, one end of the action spring abuts against the base, and the other end of the action spring abuts against the slide bar and is located in the threaded tube, the latch can be inserted into the matching holes of the base and the auxiliary disk respectively, when the pressure transmitter body is disassembled, first, the latch is pulled out, and then the pressure transmitter body is rotated counterclockwise, at this time, the auxiliary disk will be driven to rotate, when the locking part is in the matching position at the bottom of the slide groove and the entrance of the locking groove, at this time, the action spring is released, and the slide bar is pushed to slide, thereby pushing the auxiliary disk to slide upward, and the pressure transmitter body can be driven to move upward, and finally the pressure transmitter body can be directly taken out to complete the disassembly, which greatly reduces the amount of bolt disassembly, thereby realizing that when the single crystal silicon pressure transmitter is disassembled and repaired, it will be beneficial to the rapid disassembly and repair of the single crystal silicon pressure transmitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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.

[0014] Figure 1 It is a schematic diagram of the overall structure of the single crystal silicon pressure transmitter of the first embodiment of the utility model.

[0015] Figure 2 It is a structural schematic diagram of a base according to the first embodiment of the utility model.

[0016] Figure 3 It is a structural schematic diagram of a threaded barrel according to the first embodiment of the utility model.

[0017] Figure 4 It is a schematic diagram of the overall structure of the single crystal silicon pressure transmitter of the second embodiment of the utility model.

[0018] Figure 5 It is a structural schematic diagram of a sliding block of the second embodiment of the utility model.

[0019] In the figure: 101-base, 102-pressure transmitter body, 103-slide groove, 104-locking groove, 105-threaded cylinder, 106-slide rod, 107-action spring, 108-auxiliary disk, 109-latch, 110-locking part, 111-display screen, 112-hexagonal clamping part, 113-pull ring, 114-shock-absorbing rubber pad, 201-sliding block, 202-magnet. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and 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 understood as limiting the present invention. Embodiment 1

[0021] like Figures 1 to 3 As shown, Figure 1 This is the overall structural diagram of the single crystal silicon pressure transmitter. Figure 2 is a schematic diagram of the structure of the base 101, Figure 3 It is a structural schematic diagram of a threaded barrel 105. The utility model provides a single crystal silicon pressure transmitter: comprising a base 101, a pressure transmitter body 102 and an auxiliary device, wherein the auxiliary device comprises a threaded barrel 105, a slide rod 106, an action spring 107, an auxiliary disk 108, a latch 109, a pull ring 113 and a shock-absorbing rubber pad 114, and the auxiliary disk 108 has a locking portion 110. The above scheme can facilitate the rapid disassembly and maintenance of the single crystal silicon pressure transmitter when the single crystal silicon pressure transmitter is disassembled and repaired. It can be understood that the above scheme can facilitate the rapid disassembly and maintenance of the single crystal silicon pressure transmitter.

[0022] In this embodiment, the base 101 has a slide groove 103 and a locking groove 104, and the locking groove 104 is connected to the slide groove 103. The pressure transmitter body 102 is located above the base 101, and the slide groove 103 and the locking groove 104 are symmetrically arranged and connected to each other.

[0023] Among them, the threaded barrel 105 is threadedly connected to the base 101 and is located in the base 101, the sliding rod 106 is slidably connected to the threaded barrel 105 and is located on the threaded barrel 105, one end of the action spring 107 abuts the base 101, and the other end of the action spring 107 abuts the sliding rod 106, the action spring 107 is located in the threaded barrel 105, the auxiliary disk 108 has a locking portion 110, and the locking portion 110 can slide in the sliding groove 103 and the locking groove 104 respectively, the auxiliary disk 108 is slidably connected to the base 101, and is fixedly connected to the pressure transmitter body 102, and is located on the side of the base 101 close to the sliding rod 106, the latch 109 is slidably connected to the base 101, and is slidably connected to the auxiliary disk 108, and is located on the side of the base 101 close to the auxiliary disk 108. The base 101 has a T-shaped cross-section, and a threaded hole is arranged at the bottom of the internal cavity. The threaded holes are arranged at an interval of 120° to facilitate the installation of the threaded end of the bottom of the threaded barrel 105. The slide rod 106 is T-shaped, and the top end is a semicircular head. The action spring 107 adopts a coil spring, one end of which abuts the base 101 and the other end abuts the slide rod 106. The locking portion 110 is symmetrically arranged on the auxiliary disk 108. The locking portion 110 is provided with a socket to facilitate the insertion of the latch 109. The locking portion 110 can slide in the slide groove 103 and the locking groove 104. The base 101 is provided with a matching socket to facilitate the matching with the socket on the locking portion 110 to achieve the installation of the latch 109. The shell of the pressure transmitter body 102 is fixed to the auxiliary disk 108 by bolts.

[0024] Secondly, a display screen 111 is provided on the pressure transmitter body 102. The display screen 111 is used for displaying data parameters.

[0025] Then, the threaded barrel 105 has a hexagonal clamping portion 112, and the hexagonal clamping portion 112 is located at the top of the threaded barrel 105. The hexagonal clamping portion 112 facilitates the installation and fixation of the threaded barrel 105.

[0026] Finally, the pull ring 113 is integrally formed with the latch 109 and is located at the top of the latch 109; the shock-absorbing rubber pad 114 is fixedly connected to the base 101 and is located at the bottom of the base 101. The pull ring 113 facilitates the installation and removal of the latch 109, and the shock-absorbing rubber pad 114 is installed at the bottom of the mounting plate of the base 101 by bolts, and the bolts are installed with countersunk heads, which is convenient for installation, and can make the base 101 have a certain shock-absorbing performance.

[0027] When using the utility model to realize the rapid disassembly and maintenance of the single crystal silicon pressure transmitter, firstly, during installation, the locking part 110 is first aligned with the slide groove 103 respectively, and pushed downward. When the locking part 110 is pushed to the bottom of the slide groove 103, the pressure transformer body 102 is quickly rotated clockwise. At this time, the auxiliary disk 108 will be driven to rotate, so that the locking part 110 enters the locking groove 104. When it is turned to the limit position, the latch 109 can be inserted into the insertion hole on the locking part 110 from the matching hole on the base 101 in sequence to limit the position. At the same time, when pushing downward, the auxiliary disk 108 will press the slide rod 106 downward, and the slide rod 106 will compress the action spring 107 to facilitate installation. However, when the locking part 110 is limited and fixed by the latch 109, the action spring 107 will be released, pushing the slide rod 106 to the top When the pressure transmitter body 102 is disassembled, first, the latch 109 is pulled out, and then the pressure transmitter body 102 is rotated counterclockwise, at this time, the auxiliary disk 108 is driven to rotate. When the locking portion 110 is in the matching position at the bottom of the slide groove 103 and the entrance of the locking groove 104, the action spring 107 is further released to push the slide bar 106 to slide, thereby pushing the auxiliary disk 108 to slide upward, which can drive the pressure transmitter body 102 to move upward. Finally, the pressure transmitter body 102 can be directly taken out to complete the disassembly, which greatly reduces the amount of bolt disassembly, thereby realizing the rapid disassembly and maintenance of the single crystal silicon pressure transmitter. Embodiment 2

[0028] like Figure 4 and Figure 5 As shown, Figure 4 This is the overall structural diagram of the single crystal silicon pressure transmitter. Figure 5 201 is a schematic diagram of the structure of the sliding block 201 . On the basis of the first embodiment, the utility model provides a single crystal silicon pressure transmitter. The auxiliary device further includes a sliding block 201 and a magnet 202 .

[0029] The sliding block 201 is detachably connected to the base 101 and is located in the slide slot 103; the magnet 202 is fixedly connected to the sliding block 201 and is located on the side of the sliding block 201 close to the base 101. The shape and size of the sliding block 201 are set according to the shape of the slide slot 103, which is convenient for sliding into the installation. The magnet 202 is installed in the installation slot of the sliding block 201 by bolts, and the bolts are installed with countersunk heads.

[0030] In this embodiment, after the locking portion 110 on the auxiliary disk 108 slides into the locking groove 104 and is fixed by the latch 109, the sliding block 201 can be inserted and installed. After installation, it is adsorbed on the iron base 101 by the magnet 202, thereby protecting the slide groove 103 and preventing impurities from falling in.

[0031] In the description of the present utility model, it should be understood that if the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, it is only for the convenience of describing the present utility model and simplifying the description, and does 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 cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", etc. appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A single crystal silicon pressure transmitter, comprising a base (101) and a pressure transmitter body (102), wherein the base (101) is provided with a slide groove (103) and a locking groove (104), wherein the locking groove (104) is connected to the slide groove (103), and the pressure transmitter body (102) is located above the base (101), characterized in that: Also includes auxiliary devices; The auxiliary device comprises a threaded barrel (105), a slide rod (106), an action spring (107), an auxiliary disk (108) and a latch (109); the threaded barrel (105) is threadedly connected to the base (101) and is located in the base (101); the slide rod (106) is slidably connected to the threaded barrel (105) and is located on the threaded barrel (105); one end of the action spring (107) abuts against the base (101); the other end of the action spring (107) abuts against the slide rod (106); the action spring (107) is located in the threaded barrel (101); 5), the auxiliary disk (108) has a locking portion (110), and the locking portion (110) can slide in the slide groove (103) and the locking groove (104) respectively, the auxiliary disk (108) is slidably connected to the base (101), and is fixedly connected to the pressure transmitter body (102), and is located on the side of the base (101) close to the slide rod (106), the latch (109) is slidably connected to the base (101), and is slidably connected to the auxiliary disk (108), and is located on the side of the base (101) close to the auxiliary disk (108).

2. The single crystal silicon pressure transmitter according to claim 1, characterized in that: A display screen (111) is provided on the pressure transmitter body (102).

3. The single crystal silicon pressure transmitter according to claim 1, characterized in that: The threaded barrel (105) has a hexagonal clamping portion (112), and the hexagonal clamping portion (112) is located at the top of the threaded barrel (105).

4. The single crystal silicon pressure transmitter according to claim 1, characterized in that: The auxiliary device further comprises a pull ring (113) and a shock-absorbing rubber pad (114); the pull ring (113) is integrally formed with the latch (109) and is located on the top of the latch (109); the shock-absorbing rubber pad (114) is fixedly connected to the base (101) and is located on the bottom of the base (101).

5. The single crystal silicon pressure transmitter according to claim 1, characterized in that: The auxiliary device further comprises a sliding block (201) and a magnet (202); the sliding block (201) is detachably connected to the base (101) and is located in the sliding groove (103); the magnet (202) is fixedly connected to the sliding block (201) and is located on a side of the sliding block (201) close to the base (101).

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