Electromagnetic flowmeter convenient to disassemble and assemble

Abstract

The electromagnetic flowmeter comprises a protective shell, a magnetic force measuring unit is arranged in an inner cavity of the protective shell, a measuring guide pipe is arranged at the bottom of the protective shell, a sealing cover is arranged on the front face of the protective shell, and locking components are symmetrically arranged at the joint of the sealing cover and the protective shell. The locking component comprises a movable sleeve arranged on the back face of the sealing cover and a socket sleeve arranged on the inner side of the protection shell, the socket sleeve is arranged on the outer side of the movable sleeve in a sleeving mode, an inner cavity of the movable sleeve is connected with an insertion rod in a penetrating mode, and an insertion block is arranged on the outer side of the insertion rod. The movable sleeve connected with the sealing cover is inserted into the socket sleeve on the inner side of the protective shell, the insertion rod in the movable sleeve is rotated, the movable sleeve and the socket sleeve are fixed through the insertion block on the side of the insertion rod, and compared with the mode that the sealing cover and the protective shell are fixed in a threaded mode, a worker can disassemble and overhaul the flowmeter conveniently; and the conditions that the threaded sealing cover which is held beyond the hand is difficult to rotate and disassemble and time-consuming are avoided.

Description

Technical Field

[0001] The utility model relates to the field of flow detection equipment, in particular to an electromagnetic flow meter which is easy to disassemble and assemble. Background Art

[0002] An electromagnetic flowmeter is an instrument that uses Faraday's law of electromagnetic induction to measure the flow of conductive liquids. It is generally used for fluid measurement in the chemical, environmental protection, water supply and drainage, food, and pharmaceutical industries. The existing electromagnetic flowmeter has a protective shell on the outside of the magnetic measurement unit, wherein a closing cover for sealing the magnetic measurement unit is provided on the front of the protective shell. Threads are provided on the outside of the closing cover and the inner wall of the protective shell. The staff disassembles and maintains the electromagnetic flowmeter by turning the closing cover. However, due to the volume limitation of the electromagnetic flowmeter, the size of the closing cover exceeds the grip of the staff's palm, which makes it difficult to loosen the closing cover through the threads and is time-consuming. In order to solve this problem, a new type of electromagnetic flowmeter that is easy to disassemble and assemble is needed. Utility Model Content

[0003] The purpose of the utility model is to provide an electromagnetic flowmeter which is easy to assemble and disassemble, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electromagnetic flowmeter that is easy to disassemble and assemble, comprising a protective shell, an inner cavity of the protective shell is provided with a magnetic measurement unit, a bottom of the protective shell is provided with a measuring conduit, a front of the protective shell is provided with a closing cover, a locking member for fixing the closing cover is symmetrically provided at the connection between the closing cover and the protective shell, the locking member comprises a movable sleeve provided on the back of the closing cover and a socket sleeve provided on the inner side of the protective shell, the socket sleeve is sleeved on the outer side of the movable sleeve, the inner cavity of the movable sleeve is inserted with an insertion rod, and an insertion block for fixing the movable sleeve is provided on the outer side of the insertion rod.

[0005] Preferably, an L-shaped rotating hole for movement of the plug block is provided on the outer side of the movable sleeve, and an L-shaped locking groove for fixing the plug block is provided on the inner wall of the socket sleeve.

[0006] Preferably, a compression spring is provided at the end of the insertion rod, and an end of the compression spring away from the insertion rod is fixedly connected to a pressure plate, and the pressure plate is provided in the inner cavity of the socket sleeve.

[0007] Preferably, a positioning column is provided at the connection between the compression spring and the insertion rod.

[0008] Preferably, the other end of the insertion rod is inserted and connected to the front side of the closing cover.

[0009] Preferably, flanges for connecting to fluid pipelines are fixedly connected to both sides of the measuring conduit.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model symmetrically arranges locking components at the connection between the protective shell and the closing cover. The user inserts the movable sleeve connected to the closing cover into the socket sleeve inside the protective shell. The user rotates the insertion rod in the movable sleeve so that the insertion block on the side of the insertion rod fixes the movable sleeve and the socket sleeve, and is threadedly fixed with the outer side of the closing cover and the inner wall of the protective shell. This design method is convenient for workers to inspect and repair the flow meter, and avoids the situation that the threaded closing cover that is beyond the palm of hand is difficult to rotate and disassemble, and it is time-consuming. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a partial cross-sectional view of the locking component of the utility model.

[0014] Figure 3 For this utility model Figure 2 A magnified view of the structure at center.

[0015] Figure 4 It is a structural schematic diagram of the locking component of the utility model.

[0016] In the figure: 1. protective housing; 2. magnetic measurement unit; 3. measuring catheter; 4. flange; 5. closing cover; 6. locking member; 601. movable sleeve; 6011. L-shaped rotating hole; 602. socket sleeve; 6021. L-shaped locking groove; 603. plug rod; 604. plug block; 605. compression spring; 606. pressure plate; 607. positioning column. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0018] The utility model provides Figure 1-4The electromagnetic flowmeter shown is easy to disassemble and assemble, comprising a protective shell 1, an inner cavity of the protective shell 1 is provided with a magnetic measuring unit 2, a bottom of the protective shell 1 is provided with a measuring conduit 3, and a front of the protective shell 1 is provided with a closing cover 5; it should be noted that the protective shell 1, the magnetic measuring unit 2 and the measuring conduit 3 constitute the working principle of the overall reference model HMF-EM series electromagnetic flowmeter, the protective shell 1 and the closing cover 5 are both made of plastic material, both sides of the measuring conduit 3 are fixedly connected with flanges 4 for connecting to the fluid pipeline, and the connection method is welding, and the flowmeter can be connected in series to the fluid delivery pipeline by inserting bolts through the fixing holes of the flange 4; the connection between the closing cover 5 and the protective shell 1 is symmetrically provided with bolts for fixing the closing cover 5 The locking member 6; specifically, the locking member 6 comprises a movable sleeve 601 arranged on the back of the closing cover 5 and a socket sleeve 602 arranged on the inner side of the protective shell 1, the socket sleeve 602 is sleeved on the outer side of the movable sleeve 601, the inner cavity of the movable sleeve 601 is connected with an insertion rod 603, the outer side of the insertion rod 603 is provided with an insertion block 604 for fixing the movable sleeve 601, and the other end of the insertion rod 603 is connected with the front side of the closing cover 5; it should be noted that a cylindrical hole for the insertion of the movable sleeve 601 is provided on the back side of the closing cover 5, the inner wall of the cylindrical hole and the outer side of the movable sleeve 601 are bonded with glue, the socket sleeve 602 and the inner side of the protective shell 1 are connected by hot melt, the insertion rod 603 and the insertion block 604 are both made of plastic material, which By adopting hot-melt connection, a hole for the insertion and movement of the plug rod 603 is provided on the front of the closing cover 5, and the hole is connected to the cylindrical hole. The movable sleeve 601 can move and rotate in the socket sleeve 602, and the plug rod 603 can move and rotate in the movable sleeve 601; specifically, an L-shaped rotation hole 6011 for the movement of the plug block 604 is provided on the outer side of the movable sleeve 601, and an L-shaped locking groove 6021 for fixing the plug block 604 is provided on the inner wall of the socket sleeve 602. A compression spring 605 is provided at the end of the plug rod 603, and a pressure plate 606 is fixedly connected to the end of the compression spring 605 away from the plug rod 603. The pressure plate 606 is arranged in the inner cavity of the socket sleeve 602, and a positioning column is provided at the connection between the compression spring 605 and the plug rod 603 607; It should be noted that the L-shaped rotating hole 6011 corresponds to the position of the L-shaped locking groove 6021, and the turning longitudinal groove of the L-shaped locking groove 6021 facilitates the insertion of the plug 604, and the turning transverse groove facilitates the compression spring 605 to be compressed and locked by the plug 604, and the plug 604 protrudes from the top of the L-shaped rotating hole 6011 and enters the L-shaped locking groove 6021. The end of the compression spring 605 is glued to the side of the pressure plate 606, and the pressure plate 606 is not fixed to the inner wall of the movable sleeve 601. The compression spring 605 is made of stainless steel, which is a non-ferromagnetic material and will not interfere with the magnetic field of the flow meter. The positioning column 607 is hot-melt connected to the end of the plug rod 603 to prevent the compression spring 605 from tilting during deformation;In actual use, the user inserts the movable sleeve 601 connected to the closure cover 5 into the socket sleeve 602 inside the protective shell 1, wherein the plug block 604 protruding from the L-shaped rotating hole 6011 enters the L-shaped locking groove 6021. The user presses the plug rod 603 in the movable sleeve 601, and after pressing it to the bottom, rotates the plug rod 603 counterclockwise so that the plug block 604 on the side of the plug rod 603 rotates to the turning groove of the L-shaped locking groove 6021. At the same time, the compression spring 605 applies a pushing force to the plug rod 603, so that the plug block 604 is fixed in the L The turning transverse groove of the L-shaped locking groove 6021 prevents the plug block 604 from being separated from the turning transverse groove of the L-shaped locking groove 6021, thereby fixing the movable sleeve 601 and the socket sleeve 602, and then fixing the position of the closing cover 5 and the protective shell 1. Compared with the form of threaded fixing of the outer side of the closing cover 5 and the inner wall of the protective shell 1, this fixing method is convenient for the staff to quickly disassemble the electromagnetic flowmeter closing cover 5, avoiding the situation that the threaded closing cover 5 that is held beyond the palm of the hand is difficult and time-consuming to rotate and disassemble, thereby facilitating the disassembly, inspection and maintenance of the electromagnetic flowmeter. ;

[0019] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic flowmeter that is easy to assemble and disassemble, comprising a protective housing (1), an inner cavity of the protective housing (1) being provided with a magnetic force measurement unit (2), and a bottom of the protective housing (1) being provided with a measurement conduit (3), characterized in that: A closing cover (5) is arranged on the front of the protective shell (1), and a locking member (6) for fixing the closing cover (5) is symmetrically arranged at the connection between the closing cover (5) and the protective shell (1), and the locking member (6) comprises a movable sleeve (601) arranged on the back of the closing cover (5) and a socket sleeve (602) arranged on the inner side of the protective shell (1), and the socket sleeve (602) is sleeved on the outer side of the movable sleeve (601), and an insertion rod (603) is inserted and connected to the inner cavity of the movable sleeve (601), and an insertion block (604) for fixing the movable sleeve (601) is arranged on the outer side of the insertion rod (603).

2. The electromagnetic flowmeter that is easy to assemble and disassemble according to claim 1, characterized in that: An L-shaped rotating hole (6011) for moving the plug block (604) is provided on the outer side of the movable sleeve (601), and an L-shaped locking groove (6021) for fixing the plug block (604) is provided on the inner wall of the socket sleeve (602).

3. The electromagnetic flowmeter that is easy to assemble and disassemble according to claim 2, characterized in that: A compression spring (605) is provided at the end of the insertion rod (603), and one end of the compression spring (605) away from the insertion rod (603) is fixedly connected to a pressure plate (606), and the pressure plate (606) is arranged in the inner cavity of the socket sleeve (602).

4. The electromagnetic flowmeter that is easy to disassemble and assemble according to claim 3, characterized in that: A positioning column (607) is provided at the connection between the compression spring (605) and the insertion rod (603).

5. The electromagnetic flowmeter that is easy to assemble and disassemble according to claim 4, characterized in that: The other end of the insertion rod (603) is inserted and connected to the front side of the closing cover (5).

6. The electromagnetic flowmeter that is easy to assemble and disassemble according to claim 1, characterized in that: Flange plates (4) for connecting to fluid pipelines are fixedly connected to both sides of the measuring conduit (3).

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