Radar level meter shell structure

Abstract

The utility model provides a radar level meter shell structure which comprises a shell, a window cover assembly and a sensor, the window cover assembly is installed on the shell, a connecting end of the sensor is provided with a positioning groove, the positioning groove is arranged around the connecting end of the sensor, the positioning groove is further provided with a clamping spring, and the clamping spring is connected with the window cover assembly. The connecting end of the sensor extends into the shell, a clamping step is arranged in the shell, the sensor is clamped on the clamping step in the shell through the outer ring edge of a clamping spring, a limiting groove is further formed in the connecting end of the sensor, a retainer is inserted in the limiting groove and fixedly connected with the shell, and the clamping spring is arranged in the limiting groove. The retainer is used for carrying out annular limiting on the sensor, the clamp spring is located between the retainer and the shell, the connection mode is simple and rapid, the structure is stable and effective, and the problem that the sensor falls off due to the fact that a screw is loosened is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar level meter technical field, in particular to a kind of radar level meter shell structure. BACKGROUND

[0002] Radar level meter is a kind of measuring instrument based on time travel principle or echo ranging principle, wherein the shell of radar level meter can protect the electronic components and measuring mechanism inside radar level meter from external environment, such as preventing dust, moisture, corrosive gas etc. from invading, the shell can also withstand certain mechanical impact and vibration, to ensure that radar level meter can still work normally under harsh working conditions, but in the prior art, the connection between sensor and shell adopts threaded fixing, which is prone to jamming due to foreign matter during connection process, and the connecting wire is also prone to damage due to twisting, the window cover locking is only relying on the friction force of threaded connection, and the window cover may loosen under harsh working conditions such as vibration, which cannot guarantee that the internal electronic compartment will not be affected by the outside world, and the sensor is also prone to loosening and falling off. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a radar level meter shell structure to solve the above technical problems.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a radar level meter shell structure, comprising:

[0005] a shell;

[0006] a window cover assembly installed on the shell;

[0007] a sensor, the connecting end of the sensor is provided with a positioning groove, the positioning groove is arranged around the connecting end of the sensor, a circlip is further arranged on the positioning groove, the connecting end of the sensor extends into the shell, a clamping step is arranged in the shell, and the sensor is clamped on the clamping step in the shell through the outer edge of the circlip;

[0008] a limiting groove is further arranged on the connecting end of the sensor, a stopper is inserted in the limiting groove, the stopper is fixedly connected with the shell, the stopper is used for circumferential limiting of the sensor, and the circlip is located between the stopper and the shell.

[0009] The above technical scheme has the advantages that the circlip is used to connect the shell and the sensor, which effectively avoids the situation that the connecting wire is twisted and damaged due to threaded connection, the connection method is simple and fast, the structure is stable and effective, and the problem of sensor falling off due to screw loosening does not occur under harsh working conditions.

[0010] Optionally, the window cover assembly comprises a window cover, the window cover is cylindrical, one end edge of the window cover is inwardly bent to form a limiting ring, the other end of the window cover is used for connecting with the shell, an observation window is arranged in the window cover, and a sealing medium is arranged between the edge of the observation window and the window cover.

[0011] Optionally, an annular sealing groove is further arranged on the inner wall of the limiting ring, and a sealing ring is further arranged in the annular sealing groove, and the observation window is in abutment with the sealing ring.

[0012] Optionally, an annular protrusion and an elastic stop ring are further arranged on the inner wall of the window cover, the elastic stop ring is located between the outer circle edge of the observation window and the annular protrusion, and the elastic stop ring is used for axially limiting the observation window.

[0013] Optionally, a plurality of operation grooves are further arranged on the outer side end face edge of the window cover, and all the operation grooves are uniformly distributed around the axis of the window cover.

[0014] Optionally, a mounting seat is arranged on the outer wall of the shell, a locking screw is threadedly arranged on the mounting seat, the axial direction of the locking screw is parallel to the axis of the window cover, the locking screw can move along the axial direction of the mounting seat, and the end, away from the mounting seat, of the locking screw can be in abutment with the window cover.

[0015] Optionally, a plurality of limiting grooves are arranged on the edge of the window cover close to the shell, all the limiting grooves are uniformly distributed around the axis of the window cover, and when the locking screw is in abutment with the window cover, the locking screw is inserted into one of the limiting grooves.

[0016] Optionally, a plurality of function grooves are arranged on the side of the window cover, and all the function grooves are uniformly distributed around the axis of the window cover.

[0017] Optionally, at least two layers of sealing structures are further arranged on the sensor, and the sealing structures are used for sealing between the sensor and the shell.

[0018] Optionally, an electronic bin is arranged in the shell and is arranged in the shell through a screw.

[0019] As described above, the radar level meter shell structure has the following beneficial effects: the clasp spring is used for connecting the shell and the sensor, the situation that the connecting wire is easily damaged due to thread connection is effectively avoided, the connection mode is simple and fast, the structure is stable and effective, and the problem that the sensor is separated due to screw loosening does not occur under severe working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1A structure schematic diagram shown in one embodiment of the present application is displayed.

[0021] Figure 2 A cross-sectional schematic diagram shown in one embodiment of the present application is displayed.

[0022] Figure 3 A structure schematic diagram of the sensor shown in one embodiment of the present application is displayed.

[0023] Figure 4 A cross-sectional schematic diagram of the window cover assembly shown in one embodiment of the present application is displayed.

[0024] Part number explanation

[0025] 1 housing

[0026] 3 sensor

[0027] 4 snap spring

[0028] 5 stopper

[0029] 6 window cover

[0030] 7 observation window

[0031] 8 sealing ring

[0032] 9 elastic blocking ring

[0033] 10 operation groove

[0034] 11 locking screw

[0035] 12 function groove

[0036] 13 electronic compartment DETAILED DESCRIPTION

[0037] The implementation manners of the present application are described below through specific, concrete examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The present application can also be implemented or applied through other different concrete implementation manners, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.

[0038] Please refer to Figures 1 to 4It is to be noted that the diagrams provided in the present embodiment only schematically illustrate the basic concept of the present application, and only show the components related to the present application in the diagrams, not drawn according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in implementation can be arbitrarily changed, and the component layout pattern can be more complex. The structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and do not limit the implementation conditions of the present application, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of clear description, not for limiting the scope of the present application, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also regarded as the scope of the present application.

[0039] Please refer to Figures 1 to 4 The radar level gauge shell structure provided by the present application comprises:

[0040] a shell 1;

[0041] a window cover assembly installed on the shell 1;

[0042] a sensor 3, a connecting end of the sensor 3 is provided with a positioning groove, the positioning groove is arranged around the connecting end of the sensor 3, a circlip 4 is further arranged on the positioning groove, the connecting end of the sensor 3 extends into the shell 1, a clamping step is arranged in the shell 1, and the connecting end of the sensor 3 is clamped on the clamping step in the shell 1 through the outer edge of the circlip 4;

[0043] a limiting groove is further arranged on the connecting end of the sensor 3, a stopper 5 is inserted in the limiting groove, the stopper 5 is fixedly connected with the shell 1, the stopper 5 is used for circumferential limiting of the sensor 3, and the circlip 4 is located between the stopper 5 and the shell 1.

[0044] It should be noted that the inside of the shell 1 is a hollow structure, the shell 1 includes a connecting opening for connecting the sensor 3, the inner wall of the connecting opening is stepped with the inside cavity of the shell 1, the transition forms the above-mentioned clamping step, the inner wall of the connecting opening is matched with the outer wall of the connecting end of the sensor 3, when the clamping spring 4 is installed on the positioning groove, the outer side edge of the clamping spring 4 is clamped on the clamping step, which is used for limiting the sensor 3 and preventing the sensor 3 from falling off, at the same time, the stopper 5 is used for axially limiting the clamping spring 4, thereby avoiding the axial movement of the sensor 3.

[0045] The stopper 5 includes a mounting part and a clamping part, the mounting part is a circular structure, the center of the mounting part is provided with a mounting hole, the mounting hole is used for connecting a screw with the inner wall of the shell 1, the clamping part is a long strip, one end of the clamping part is used for connecting with the mounting part, and the other end of the clamping part is used for being inserted into the limiting groove, and the mounting part and the clamping part are integrally formed.

[0046] The window cover assembly includes the window cover 6, the window cover 6 is a cylinder, one end edge of the window cover 6 is inwardly bent to form a limiting ring, the other end of the window cover 6 is used for connecting with the shell 1, the observation window 7 is arranged in the window cover 6, and a sealing medium is arranged between the edge of the observation window 7 and the window cover 6.

[0047] It should be noted that the observation window 7 is placed from the end of the window cover 6 used for connecting with the shell 1, after the observation window 7 is placed, the sealing medium is arranged between the edge of the observation window 7 and the window cover 6, the sealing medium adopts a pouring sealant, such as silicone pouring sealant, can seal the gap between the observation window 7 and the window cover 6, and meanwhile, the observation window 7 is prevented from falling off.

[0048] It should be further explained that the observation window 7 adopts an explosion-proof glass.

[0049] The inner wall of the limiting ring is further provided with an annular sealing groove, a sealing ring 8 is further arranged in the annular sealing groove, and the observation window 7 is abutted against the sealing ring 8.

[0050] It should be noted that the annular sealing groove and the sealing ring 8 are arranged, and the observation window 7 and the window cover 6 are further sealed, thereby preventing external impurities from entering the gap between the mirror surface of the observation window 7 and the window cover 6.

[0051] The inner wall of the window cover 6 is further provided with an annular protrusion and an elastic stopper 9, the elastic stopper 9 is located between the outer circle edge of the observation window 7 and the annular protrusion, and the elastic stopper 9 is used for axially limiting the observation window 7.

[0052] It should be noted that the purpose of setting the annular protrusion is to axially limit the elastic retainer 9, so that the elastic retainer 9 can exert pressure on the observation window 7, further preventing the observation window 7 from falling out of the window cover 6, wherein the inner diameter of the annular protrusion is greater than or equal to the outer diameter of the observation window 7.

[0053] Further, the annular protrusion is integrally formed with the window cover 6, wherein the inner wall of the window cover 6 away from the observation window 7 is also provided with a connecting portion, and the connecting portion is provided with a groove for sealing and a thread for connection.

[0054] A sealing ring is also provided between the connecting portion and the shell 1 for sealing when the two are connected.

[0055] Exemplarily, a plurality of operation grooves 10 are also provided on the outer end surface edge of the window cover 6, and all the operation grooves 10 are uniformly distributed around the axis of the window cover 6.

[0056] It should be noted that the purpose of setting the operation grooves 10 is that when rotating the window cover 6, a tool can be inserted into the operation grooves 10 to increase the torque to open or tighten the window cover 6, avoiding the situation that it cannot be unscrewed by hand in harsh working conditions.

[0057] Exemplarily, a mounting seat is provided on the outer wall of the shell 1, and a locking screw 11 is threadedly provided on the mounting seat, the axial direction of the locking screw 11 is parallel to the axis of the window cover 6, the locking screw 11 can move along the axial direction of the mounting seat, and the end of the locking screw 11 away from the mounting seat can abut against the window cover 6.

[0058] It should be noted that the mounting seat is provided for the locking screw 11 to provide a mounting position, a screw hole is provided on the mounting seat, the locking screw 11 is threadedly provided in the screw hole, the axial position of the locking screw 11 is changed by rotating it, and when the locking screw 11 is unscrewed from the corresponding screw hole, the end thereof abuts against the window cover 6 to increase the friction therebetween and prevent the window cover 6 from loosening.

[0059] Exemplarily, a plurality of limiting grooves are provided on the edge of the window cover 6 close to the shell 1, and all the limiting grooves are uniformly distributed around the axis of the window cover 6, and when the locking screw 11 abuts against the window cover 6, the locking screw 11 is inserted into one of the limiting grooves.

[0060] It should be noted that during the process of abutting the locking screw 11 against the window cover 6, limiting grooves are provided on both sides of the locking screw 11, the limiting grooves are used to limit the locking screw 11, further enhancing the locking effect of the window cover 6 and avoiding loosening of the window cover 6 in harsh working conditions.

[0061] Exemplarily, a plurality of functional grooves 12 are arranged on the side of the window cover 6, and all the functional grooves 12 are uniformly distributed around the axial line of the window cover 6.

[0062] It should be further explained that the purpose of arranging the functional grooves 12 is to increase the friction force of operating the window cover 6, so that the window cover 6 can be more convenient and labor-saving when rotating.

[0063] It should be further explained that the functional grooves 12 are arranged on the edge close to one end of the observation window 7, and the functional grooves 12 are arranged in a staggered manner with the operating grooves 10, so as to avoid that too many grooves will damage the structural strength of the window cover assembly.

[0064] Exemplarily, at least two sealing structures are further arranged on the sensor 3, and the sealing structures are used for sealing between the sensor 3 and the shell 1.

[0065] It should be further explained that the inner wall of the shell 1 connecting opening is attached to the outer wall of the connecting end of the sensor 3, and both the two sealing structures adopt rubber sealing rings, which further enhances the sealing effect when the sensor 3 is connected with the shell 1.

[0066] Exemplarily, an electronic bin 13 is arranged in the shell 1, and the electronic bin 13 is arranged in the shell 1 through screws.

[0067] In summary, the radar level meter shell structure of the utility model has the advantages that the shell 1 and the sensor 3 are connected through the snap spring 4, which effectively avoids the situation that the connecting line is easily damaged due to the thread connection, the connection mode is simple and fast, the structure is stable and effective, and the problem that the sensor is detached due to the screw loosening under the harsh working condition does not occur.

[0068] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those who have ordinary knowledge in the technical field without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A radar level gauge housing structure, characterized by Include: The shell; The window cover assembly is installed on the shell; The connecting end of the sensor is provided with a positioning groove, the positioning groove is arranged around the connecting end of the sensor, a snap spring is further arranged on the positioning groove, the connecting end of the sensor extends into the shell, a clamping step is arranged in the shell, and the sensor is clamped on the clamping step in the shell through the outer edge of the snap spring; A limiting groove is further arranged on the connecting end of the sensor, a stopper is inserted in the limiting groove, the stopper is fixedly connected with the shell, the stopper is used for circumferential limiting of the sensor, and the snap spring is located between the stopper and the shell.

2. A radar level gauge housing structure according to claim 1, characterized in that: The window cover assembly includes a window cover, the window cover is cylindrical, one end edge of the window cover is bent inward to form a limiting ring, the other end of the window cover is used for connecting with the shell, an observation window is arranged in the window cover, and a sealing medium is arranged between the edge of the observation window and the window cover.

3. A radar level gauge housing structure according to claim 2, characterized in that: The inner wall of the limiting ring is further provided with an annular sealing groove, and a sealing ring is further arranged in the annular sealing groove.

4. A radar level gauge housing structure according to claim 3, characterized in that: The inner wall of the window cover is further provided with an annular protrusion and an elastic stopper, the elastic stopper is located between the outer edge of the observation window and the annular protrusion, and the elastic stopper is used for axial limiting of the observation window.

5. A radar level gauge housing structure according to claim 4, characterized in that: A plurality of operation grooves are further arranged on the outer side end face edge of the window cover, and all the operation grooves are uniformly distributed around the axis of the window cover.

6. A radar level gauge housing structure according to claim 5, characterized in that: A mounting seat is arranged on the outer wall of the shell, a locking screw is threadedly arranged on the mounting seat, the axial direction of the locking screw is parallel to the axis of the window cover, the locking screw can move along the axial direction of the mounting seat, and the end portion of the locking screw away from the mounting seat can abut against the window cover.

7. A radar level gauge housing structure according to claim 6, characterized in that: A plurality of limiting grooves are arranged on the edge of the window cover close to the shell, all the limiting grooves are uniformly distributed around the axis of the window cover, when the locking screw abuts against the window cover, the locking screw is inserted into one of the limiting grooves.

8. A radar level gauge housing structure according to claim 7, characterized in that: A plurality of function grooves are arranged on the side surface of the window cover, and all the function grooves are uniformly distributed around the axis of the window cover.

9. A radar level gauge housing structure according to claim 8, characterized in that: At least two layers of sealing structures are further arranged on the sensor, and the sealing structures are used for sealing between the sensor and the shell.

10. A radar level gauge housing structure according to claim 9, characterized in that: An electronic bin is arranged in the shell, and the electronic bin is arranged in the shell through a screw.

Images