Display screen cover mounting structure and meter

Abstract

The application relates to the technical field of metering instruments, and discloses a display screen cover mounting structure and a metering instrument. The display screen cover mounting structure comprises a display screen cover, an outer side circumferential surface of which is provided with a first connecting structure composed of at least one pair of sliding clamping grooves; and a mounting shell, an end of which is provided with a second connecting structure composed of at least one pair of sliding buckles. Each pair of sliding clamping grooves is rotationally symmetrical around a rotating shaft of the display screen cover as a rotating center, and each pair of sliding buckles is rotationally symmetrical around the rotating shaft as a rotating center, so that the display screen cover can be mounted in a normal direction or a reverse direction, thereby enabling a user to dismount the display screen cover from the mounting shell at any time to change the mounting direction according to reading convenience after the metering instrument is mounted, and thereby improving the convenience of reading or debugging operation.

Description

Technical Field

[0001] This invention relates to the field of metering instrument technology, specifically to a display screen cover mounting structure and a metering instrument. Background Technology

[0002] Taking radar level gauges and other metering instruments as an example, the installation posture of metering instruments is limited by factors such as installation space and wiring. The limited installation posture may affect the staff's on-site reading or debugging of metering instruments, making reading and operation inconvenient, or even causing reading errors, thus affecting the user experience. Summary of the Invention

[0003] In view of this, the present invention provides a display screen cover mounting structure and a measuring instrument to solve the problem of inconvenient reading and operation caused by the limited installation posture of the measuring instrument.

[0004] In a first aspect, the present invention provides a display screen cover mounting structure, comprising:

[0005] The display cover has a display screen on its end face; the outer peripheral surface of the display cover has a first connecting structure consisting of at least one pair of sliding slots.

[0006] The mounting housing has a second connecting structure consisting of at least one pair of sliding buckles at its end. The second connecting structure is rotated and engaged with the first connecting structure to complete the connection between the display cover and the mounting housing. Each pair of sliding slots is symmetrically arranged about the rotation axis of the display cover, and each pair of sliding buckles is symmetrically arranged about the rotation axis, so that the display cover can be installed upright or in reverse.

[0007] Beneficial effects: When the display cover with the display screen is rotated and assembled onto the mounting housing, the sliding buckle at the end of the mounting housing slides into the sliding groove on the outer circumference of the display cover to achieve engagement. Since each pair of sliding grooves is rotationally symmetrical about the rotation axis of the display cover, and each pair of sliding buckles is also rotationally symmetrical about the rotation axis, the user can remove and reinstall the display cover from the mounting housing at any time after the metering instrument is installed, so that the reading is directly facing the user or the angle between the reading and the user's position is less than 90 degrees, thereby improving the convenience of reading or debugging operations.

[0008] In one alternative embodiment, the sliding latch includes a columnar latch block that is formed by a radial protrusion from the peripheral inner wall of the mounting housing toward the display screen cover.

[0009] The sliding slot extends circumferentially along the display cover; the first end of the sliding slot is provided with a sliding entrance for the columnar block to enter, and the columnar block can be slidably positioned in the sliding slot.

[0010] Beneficial effects: The inner wall of the mounting housing protrudes radially towards the display cover to form a columnar locking block, which facilitates assembly. Since the extension direction of the columnar locking block is perpendicular to the axis of the display cover, it can simultaneously bear radial and axial forces after locking. Bearing radial force means that it can resist the squeezing of the display cover towards the inside of the housing when the equipment is dropped or collided, thus preventing the display cover from deforming. Bearing axial force means that it cooperates with the limiting of the sliding slot to prevent the display cover from becoming loose and displaced due to long-term use and failing. The horizontal section of the sliding slot is set with a sliding entrance, which makes it easy for the sliding buckle to enter the sliding slot from the sliding entrance. When the display cover rotates, the sliding buckle can easily slide along the sliding slot from the first end near the sliding entrance to the second end away from the sliding entrance to complete the locking.

[0011] In one alternative embodiment, a stop boss is provided at the second end of the sliding slot away from the sliding entrance.

[0012] Beneficial effects: During the process of rotating and fastening the display cover to the mounting housing, the sliding buckle moves along the sliding groove to the stop boss, and overcomes the resistance of the stop boss to engage with the end of the sliding groove, thus completing the locking and improving the reliability of the connection.

[0013] In one alternative embodiment, the display cover includes:

[0014] The display screen is located on the top cover of the panel.

[0015] The back cover has a sliding slot on its outer circumference; the top cover of the front panel is detachably connected to the back cover; a cavity suitable for accommodating the display control board is formed between the back cover and the top cover of the front panel.

[0016] The mounting housing includes:

[0017] The inner shell top cover has a second connecting structure. A jumper socket is provided on the end face of the inner shell top cover near the back shell, and two pin socket holes are symmetrically opened on the end face of the back shell. In the upright position of the display cover, one of the pin socket holes corresponds to the position of the jumper socket. In the reverse position of the display cover, the other pin socket hole corresponds to the position of the jumper socket. A spring pin is provided in the jumper socket. The spring pin passes through the pin socket hole and abuts against the contact of the display control board to realize the electrical connection of the display screen.

[0018] The inner shell body is snapped together with the inner shell top cover.

[0019] Beneficial effects: Pin socket holes are provided on the back cover, and the panel cover with the display screen is detachably mounted on top of the back cover. The pin socket holes correspond to the jumper sockets on the mounting housing. The lower end of the spring pin in the jumper socket connects to the circuit board inside the mounting housing, and the upper end of the spring pin passes through the pin socket hole and contacts the display control board contacts on the inner cover to achieve electrical connection. The structure is simple, and the spring pin can press firmly against the contacts of the display control board under its own deformation and springback action, achieving a reliable electrical connection. The two symmetrical pin socket holes on the end face of the back cover ensure that the spring pin can reliably press against the contacts of the display control board in both upright and reverse installation.

[0020] In one alternative embodiment, the pin seat holes are fan-shaped, and the two pin seat holes are arranged symmetrically with respect to a plane passing through the axis of the mounting housing.

[0021] Beneficial effects: The fan-shaped pin socket allows for fine-tuning of the angle of the spring pin, ensuring precise contact with the display and control board.

[0022] In one optional embodiment, the end face of the back cover is also provided with an adjustment hole, which is spaced apart from the pin seat hole.

[0023] Beneficial effects: The display and control board can be directly adjusted through the adjustment holes on the back cover, making it easy and convenient to operate.

[0024] Secondly, the present invention also provides a metering instrument, including the display cover mounting structure of any of the above.

[0025] Beneficial effects: Since the measuring instrument includes the display cover mounting structure of the present invention, it has the same technical effects as the display cover mounting structure, which will not be described in detail here.

[0026] In one alternative embodiment, the mounting housing includes:

[0027] The inner case of the watch consists of an inner case cover and an inner case body;

[0028] The watch case is detachably mounted on the outside of the inner case.

[0029] Beneficial effects: The outer casing of the watch mainly serves as protection, while the inner casing serves as the housing and mounting base. It is detachable, so if the outer casing wears out and needs to be replaced, there is no need to scrap the entire mounting housing; only the outer casing needs to be replaced, effectively reducing replacement costs.

[0030] In one optional embodiment, a connecting seat is provided on the outer wall surface of the inner shell body, and a supporting boss is provided on the inner wall surface of the outer shell body. The supporting boss and the connecting seat are connected by a threaded connector.

[0031] Beneficial effects: The support boss and the connecting seat are connected by a threaded connector, which makes the connection between the outer casing and the inner casing of the watch highly reliable and less prone to detachment.

[0032] In one alternative implementation, the metering instrument is a radar level gauge.

[0033] Beneficial effects: When the radar level gauge is installed on the top of a pipeline or silo, if the orientation of the display screen is inconvenient for reading data when the operator is reading the meter or retrieving data due to space limitations, the orientation of the display screen cover can be readjusted to make it upright, thus facilitating reading and operation and improving convenience. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a three-dimensional structural diagram of a radar level gauge according to an embodiment of the present invention;

[0036] Figure 2 This is a partial cross-sectional view of a display screen cover mounting structure according to an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the reverse mounting state of a display screen cover mounting structure according to an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the upright mounting state of a display screen cover mounting structure according to an embodiment of the present invention;

[0039] Figure 5 This is a diagram illustrating the connection structure between the back cover and the inner casing of the watch body according to an embodiment of the present invention.

[0040] Figure 6 for Figure 5 A magnified view of a portion of section A;

[0041] Figure 7 This is a perspective view of an inverted display screen cover according to an embodiment of the present invention;

[0042] Figure 8 This is a three-dimensional structural diagram of a mounting housing according to an embodiment of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Outer cover of the meter head;

[0045] 2. Watch casing;

[0046] 21. Support boss;

[0047] 3. Mid-section connector;

[0048] 4. Large lens;

[0049] 5. Display screen cover;

[0050] 51. Panel cover;

[0051] 52. Back cover; 521. Sliding slot; 5211. Slide entrance; 522. Stop boss; 523. Adjustment hole; 524. Pin seat hole;

[0052] 6. Inner casing of the watch;

[0053] 61. Inner shell cover; 611. Sliding buckle; 6111. Columnar locking block; 612. Connecting ear; 613. Matching rib; 614. Jumper socket;

[0054] 62. Inner shell body; 621. Connecting seat;

[0055] 7. Wiring terminals;

[0056] 8. Spring pin. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] In the description of the invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0061] According to an embodiment of the present invention, in one aspect, a display cover mounting structure is provided, comprising:

[0062] The display cover 5 has a display screen on its end face; the outer peripheral surface of the display cover 5 has a first connection structure consisting of at least one pair of sliding slots 521.

[0063] The mounting housing has a second connecting structure consisting of at least one pair of sliding buckles 611 at its end. The second connecting structure is rotated and engaged into the first connecting structure to complete the connection between the display cover 5 and the mounting housing. Each pair of sliding slots 521 is symmetrically arranged about the rotation axis of the display cover 5, and each pair of sliding buckles 611 is symmetrically arranged about the rotation axis, so that the display cover 5 can be installed upright or in reverse.

[0064] When the display cover 5 with the display screen is rotated and assembled onto the mounting housing, the sliding buckle 611 at the end of the mounting housing slides into the sliding groove 521 on the outer circumference of the display cover 5 to achieve engagement. Since each pair of sliding grooves 521 is rotationally symmetrical about the rotation axis of the display cover 5, and each pair of sliding buckles 611 is also rotationally symmetrical about the rotation axis, the user can remove the display cover 5 from the mounting housing at any time after the metering instrument is installed and reinstall it for ease of reading, so that the reading is directly facing the user or the angle between the reading and the user's location is less than 90 degrees, thereby improving the convenience of reading or debugging operations.

[0065] The rotational symmetry angle of each pair of sliding slots 521 and each pair of sliding buckles 611 is 180º, so that when the display cover 5 is rotated and installed upright or in reverse, the second connecting structure on the mounting housing can be slidably engaged with the first connecting structure on the display cover 5 to achieve reliable fixation between the display cover 5 and the mounting housing.

[0066] In some embodiments, the sliding latch 611 includes a columnar latch 6111, which is formed by a radial protrusion from the peripheral inner wall of the mounting housing toward the display cover 5.

[0067] The sliding slot 521 extends circumferentially along the display cover 5; the first end of the sliding slot 521 is provided with a sliding entrance 5211 for the columnar block 6111 to enter, and the columnar block 6111 can be slidably disposed in the sliding slot 521.

[0068] The inner wall of the mounting housing protrudes radially towards the display cover 5 to form a columnar locking block 6111, facilitating assembly. Since the extension direction of the columnar locking block 6111 is perpendicular to the axial direction of the display cover 5, it can simultaneously bear radial and axial forces after engagement. Bearing radial force means resisting the pressure of the display cover 5 towards the inside of the housing when the equipment is dropped or collided, preventing deformation of the display cover 5. Bearing axial force means cooperating with the limiting function of the sliding groove 521 to prevent the display cover 5 from loosening and shifting due to long-term use, thus preventing failure. The horizontal section of the sliding groove 521 is provided with a sliding inlet 5211, facilitating the entry of the sliding buckle 611 into the sliding groove 521 from the sliding inlet 5211. When the display cover 5 rotates, the sliding buckle 611 can easily slide along the sliding groove 521 from the first end near the sliding inlet 5211 to the second end away from the sliding inlet 5211 to complete engagement.

[0069] In some embodiments, a stop boss 522 is provided at the second end of the sliding slot 521 away from the sliding entrance 5211.

[0070] During the process of rotating and fastening the display cover 5 to the mounting housing, the sliding buckle 611 moves along the sliding groove 521 to the stop boss 522, and overcomes the resistance of the stop boss 522 to engage with the end of the sliding groove 521, thus completing the engagement and locking and improving the reliability of the connection.

[0071] In some embodiments, the sliding slot 521 includes:

[0072] The horizontal section extends from its first end toward the bottom side of the display cover 5 to form a sliding entrance 5211;

[0073] The stop boss 522 is located at the end of the horizontal section away from the slide entrance 5211.

[0074] The horizontal section of the sliding slot 521 is provided with a sliding inlet 5211, which facilitates the sliding buckle 611 to enter the sliding slot 521 from the beginning of the horizontal section. When the display cover 5 rotates, the sliding buckle 611 slides along the horizontal section from its beginning to the stop protrusion 522 near its end, and overcomes the resistance of the stop protrusion 522 to engage with the end of the horizontal section, thus completing the engagement and locking.

[0075] It should be noted that, in order to facilitate the sliding buckle 611 to pass through the stop boss 522 and be reliably limited, the stop boss 522 is designed with an inclined slope on the side near the beginning of the horizontal section, while the side near the end of the horizontal section is designed with no slope or a steep slope.

[0076] In some embodiments, the display cover 5 includes:

[0077] The display screen is located on the upper cover of the panel 51.

[0078] The back cover 52 has a sliding slot 521 on its outer peripheral surface; the panel cover 51 is detachably connected to the back cover 52; a receiving cavity suitable for accommodating the display control board is formed between the back cover 52 and the panel cover 61.

[0079] The mounting housing includes:

[0080] The inner shell cover 61 has a second connecting structure disposed thereon. A jumper socket 614 is disposed on the end face of the inner shell cover 61 near the back shell 52, and two pin socket holes 524 are symmetrically opened on the end face of the back shell 52. In the upright position of the display cover 5, one of the pin socket holes 524 corresponds to the position of the jumper socket 614. In the reverse position of the display cover 5, the other pin socket hole 524 corresponds to the position of the jumper socket 614. A spring pin 8 is disposed in the jumper socket 614. The top end of the spring pin 8 passes through the pin socket hole 524 and abuts against the contact of the display control board to realize the electrical connection of the display screen.

[0081] The inner shell body 62 is engaged with the inner shell top cover 61.

[0082] A pin socket hole 524 is provided on the back cover 52, and the panel cover 51 with the display screen is detachably mounted on top of the back cover 52. The pin socket hole 524 is correspondingly provided with the jumper socket 614 of the mounting housing. The lower end of the spring pin in the jumper socket 614 is connected to the circuit board inside the mounting housing, and the upper end of the spring pin passes through the pin socket hole 524 and contacts the contact of the display control board on the inner cover 61 to achieve electrical connection. The structure is simple, and the spring pin can press against the contact of the display control board under its own deformation and springback action to achieve reliable electrical connection. The two pin socket holes 524 symmetrically provided on the end face of the back cover 52 can ensure that the spring pin can reliably press against the contact of the display control board in both upright and reverse installation.

[0083] It should be noted that the external power supply is provided through terminal 7, which is electrically connected to the bottom of spring pin 8.

[0084] In some embodiments, the pin seat hole 524 is fan-shaped, and the two pin seat holes 524 are arranged symmetrically with respect to a plane passing through the axis of the mounting housing.

[0085] The fan-shaped pin socket 524 allows for fine-tuning of the angle of the spring pin, ensuring precise contact with the display control board.

[0086] In some embodiments, the end face of the back cover 52 is also provided with an adjustment hole 523, which is spaced apart from the pin seat hole 524.

[0087] When the display control board needs to be debugged, it can be operated directly through the debugging hole 523 on the back cover 52, which is convenient and easy to use.

[0088] According to an embodiment of the present invention, another aspect provides a metering instrument, including a display cover mounting structure.

[0089] Since the measuring instrument includes the display cover mounting structure of the present invention, it has the same technical effects as the display cover mounting structure, which will not be described in detail here.

[0090] In some embodiments, the mounting housing includes:

[0091] The inner casing 6 of the watch body is composed of an inner casing cover 61 and an inner casing body 62;

[0092] The outer casing 2 is detachably mounted on the periphery of the inner casing 6.

[0093] The outer casing 2 of the watch body mainly serves as protection, while the inner casing 6 serves as the housing and mounting base. It is detachable, so if the outer casing 2 of the watch body is worn and needs to be replaced, it is not necessary to scrap the entire mounting housing. Only the outer casing 2 of the watch body needs to be replaced, which effectively reduces replacement costs.

[0094] In some embodiments, the outer wall surface of the inner shell body 62 is provided with a connecting seat 621, and the inner wall surface of the watch body outer shell 2 is provided with a supporting boss 21. The supporting boss 21 and the connecting seat 621 are connected by a threaded connector.

[0095] The support boss 21 is connected to the connecting seat 621 by a threaded connector, and the connection between the outer casing 2 and the inner casing 62 is highly reliable and not easily detached.

[0096] In some embodiments, the metering instrument is a radar level gauge.

[0097] When the radar level gauge is installed on the top of a pipeline or silo, due to the limitation of installation space, if the orientation of the display screen is not convenient for reading data when the staff is reading the meter or retrieving data, the orientation of the display screen cover 5 can be readjusted to make it from reverse to upright, which facilitates reading and operation and improves convenience.

[0098] like Figure 1 As shown, this embodiment of the invention provides a radar level gauge, including a head cover 1, a body casing 2, a middle connecting piece 3, and a large lens 4. Figure 2As shown, a display screen cover 5 and an inner casing 6 are provided inside the outer cover 1 and the outer casing 2. The display screen cover 5 includes a front panel cover 51 and a back cover 52. The inner casing 6 includes an inner casing cover 61 and an inner casing body 62. The inner casing cover 61 and the inner casing body 62 are connected by snap-fit. A connecting seat 621 for connecting the outer casing 2 and the inner casing cover 61 is integrally fixed to the outer wall of the inner casing body 62. A support boss 21 for supporting the inner casing body 62 is integrally formed on the inner wall of the outer casing 2. The support boss 21 and the connecting seat 621 are fixedly connected by bolts. See also Figure 3 and Figure 4 The detachable installation structure of the display cover 5 and the inner housing 6 of the watch body allows the display cover 5 to be installed in both the forward and reverse positions. This allows users to adjust the orientation of the display screen on the display cover 5 as needed, transforming the display cover 5 into a position that is easy to read and operate, thus improving the user experience.

[0099] like Figure 5 and Figure 6 As shown, the inner shell cover 61 is integrally formed with four sliding buckles 611, which are symmetrically arranged about the central axis of the inner shell cover 61. The outer circumferential surface of the back shell 52 has a sliding groove 521 corresponding to the sliding buckle 611. A stop protrusion 522 is provided at the end of the stroke of the sliding groove 511. When installing the display cover 5 and the inner shell 6, the sliding buckle 611 and the sliding groove 521 need to be aligned so that the sliding buckle 611 slides into the sliding groove 521. Then, the display cover 5 is rotated so that the sliding buckle 611 slides past the stop protrusion 522, thereby completing the buckle connection between the display cover 5 and the inner shell 6. The inner shell cover 61 is also provided with a connecting ear 612, and the outer cover 1 of the watch head is fixedly connected to the connecting ear 612.

[0100] like Figure 8 As shown, the inner cover 61 is integrally formed with a jumper socket 614, in which a spring pin 8 is fixedly connected. One end of the spring pin 8 is electrically connected to the circuit board inside the inner cover 6, and the other end of the spring pin 8 extends out of the jumper socket 614 and abuts against and is electrically connected to the display control board contact provided on the inner cover 61. The inner cover 61 is also integrally formed with a mating rib 613 that slides and engages with the display cover 5. The back cover 52 slides and rotates along the outer periphery of the mating rib 613.

[0101] like Figure 7 As shown, the end face of the back cover 52 is symmetrically provided with two pin socket holes 524 for use with jumper socket 614. The jumper socket 614 is slidably connected to the pin socket holes 524. The back cover 52 is also provided with debugging holes 523 for debugging the display control board.

[0102] After the radar level gauge body of the present invention is installed, the operator can choose to install the display cover 5 either upright or backward, thereby facilitating reading and debugging.

[0103] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A display screen cover mounting structure, characterized in that, include: The display cover (5) has a display screen on its end face; the outer peripheral surface of the display cover (5) is provided with a first connection structure consisting of at least one pair of sliding slots (521); The mounting housing has a second connecting structure consisting of at least one pair of sliding buckles (611) at its end. The second connecting structure is rotated and engaged with the first connecting structure to complete the connection between the display cover (5) and the mounting housing. Each pair of sliding slots (521) is symmetrically arranged about the rotation axis of the display cover (5), and each pair of sliding buckles (611) is symmetrically arranged about the rotation axis, so that the display cover (5) can be installed in both the forward and reverse directions. The display cover (5) includes: Panel cover (51), the display screen is located on the panel cover (51); The back shell (52) has a sliding slot (521) on its outer peripheral surface; the panel cover (51) is detachably connected to the back shell (52); a receiving cavity suitable for accommodating the display control board is formed between the back shell (52) and the panel cover (51). The mounting housing includes: The inner shell cover (61) has the second connecting structure disposed on the inner shell cover (61). A jumper socket (614) is disposed on the end face of the inner shell cover (61) near the back shell (52), and two pin socket holes (524) are symmetrically opened on the end face of the back shell (52). In the upright state of the display cover (5), one of the pin socket holes (524) corresponds to the position of the jumper socket (614). In the reverse state of the display cover (5), the other pin socket hole (524) corresponds to the position of the jumper socket (614). A spring pin (8) is disposed in the jumper socket (614). The spring pin (8) passes through the pin socket hole (524) and abuts against the contact of the display control board to realize the electrical connection of the display screen. The inner shell body (62) is engaged with the inner shell top cover (61).

2. The display screen cover mounting structure according to claim 1, characterized in that, The sliding buckle (611) includes a columnar latch (6111), which is formed by a radial protrusion of the inner peripheral wall of the mounting housing toward the display screen cover (5). The sliding slot (521) extends circumferentially along the display cover (5); the first end of the sliding slot (521) is provided with a sliding entrance (5211) for the columnar block (6111) to enter, and the columnar block (6111) can be slidably disposed in the sliding slot (521).

3. The display screen cover mounting structure according to claim 2, characterized in that, The sliding slot (521) is provided with a stop boss (522) at the second end away from the sliding entrance (5211).

4. The display cover mounting structure according to any one of claims 1 to 3, characterized in that, The pin seat hole (524) is fan-shaped, and the two pin seat holes (524) are arranged symmetrically with respect to the plane passing through the axis of the mounting housing.

5. The display screen cover mounting structure according to any one of claims 1 to 3, characterized in that, The end face of the back shell (52) is also provided with an adjustment hole (523), which is spaced apart from the pin seat hole (524).

6. A measuring instrument, characterized in that, The display cover mounting structure includes any one of claims 1 to 5.

7. The metering instrument according to claim 6, characterized in that, The mounting housing includes: The inner casing (6) of the watch body is composed of an inner casing cover (61) and an inner casing body (62); The outer casing (2) is detachably installed on the periphery of the inner casing (6).

8. The metering instrument according to claim 7, characterized in that, The outer wall of the inner shell body (62) is provided with a connecting seat (621), and the inner wall of the outer shell body (2) is provided with a supporting boss (21). The supporting boss (21) and the connecting seat (621) are connected by a threaded connector.

9. The metering instrument according to claim 8, characterized in that, The measuring instrument is a radar level gauge.

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