Shell structure of air leakage detection instrument

Abstract

The utility model discloses a shell structure of an air leakage detection instrument, which comprises a shell, the middle parts of the two sides of the shell are recessed inwards to form holding parts, and the holding parts are in transition fit with the two sides of the shell through chamfers; the holding part is of a V-shaped structure, and a reinforcing rib is arranged in the middle of the holding part; a protection block is installed at the corner of the shell, and the protection block is matched with the shell through a buckle structure. The shell has the beneficial effects that the two sides of the shell are sunken inwards to form the holding parts, and the holding parts are in chamfer transition fit with the two sides of the shell, so that on one hand, the width size of the shell can be reduced, a worker can hold the shell conveniently, and the holding hand feeling and the holding force are improved; and meanwhile, due to the arrangement of the chamfer, hard extrusion of the edge of the holding part to the hand of the worker can be avoided, the hand can be better attached through the arrangement of the chamfer, and the use experience is further improved.

Description

Technical Field

[0001] This application relates to the field of leak detection equipment technology, and in particular to the housing structure of a leak detection instrument. Background Technology

[0002] Natural gas is typically transported through gas pipelines, which may leak due to aging or other reasons. Since natural gas is a flammable gas, leaks can cause serious fires and explosions. Furthermore, natural gas is a hazardous gas; inhalation can result in injury or death. Therefore, professionals regularly conduct on-site leak checks on pipelines, which requires the use of leak detectors.

[0003] Existing handheld leak detectors generally have a rectangular housing (see patent CN215764652U for reference). Rectangular housings are a common structural form. However, for housings that are slightly thicker or wider, the grip is not comfortable and the stability of holding the device is poor. Holding the device for a long time can easily lead to hand fatigue and discomfort. Therefore, a housing structure for a leak detector is proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] One of the objectives of this application is to provide a housing structure for a leak detection instrument.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a housing structure for a leak detection instrument, including a housing, wherein the middle of both sides of the housing is recessed inward to form a gripping part, and the gripping part and the two sides of the housing are transitionally fitted by chamfering.

[0006] Preferably, the grip portion has a "V" shaped structure, and a reinforcing rib is provided in the middle of the grip portion.

[0007] Preferably, a protective block is installed at the corner of the housing, and the protective block is engaged with the housing through a snap-fit ​​structure.

[0008] Preferably, the protective block includes a pair of corner blocks; the snap-fit ​​structure includes a snap post and a slot, the snap post is installed on the inner side of the corner block, the slot is disposed on the corner side of the housing, and the corner block is adapted to realize the installation of the protective block by snapping the snap post and the slot.

[0009] Preferably, the buckle structure further includes a second buckle post and a second buckle groove, the second buckle post and the second buckle groove being respectively disposed on opposite sides of the two corner blocks; when the protective block is installed, the second buckle post and the second buckle groove are adapted to engage in a snap-fit ​​relationship.

[0010] Preferably, a cover is movably mounted on one side of the housing; when the cover is in use, the cover is adapted to move and abut against one side of the housing; when the cover is not in use, the cover is adapted to move and abut against the other side of the housing.

[0011] Preferably, a connecting plate is hinged to one side of the housing, and one end of the connecting plate is hinged to the cover; or a flexible strip is fixed to one side of the housing, and one end of the flexible strip is connected to the cover.

[0012] Preferably, a crank is provided on one side of the housing, and the crank cooperates with the adjustment device on the probe head; a bulge is provided on the cover, and a groove is provided on the other side of the housing; when the cover is in use, the bulge is adapted to cooperate with the crank to lock the cover; when the cover is not in use, the bulge is adapted to cooperate with the groove to lock the cover.

[0013] Preferably, a finger ring is provided on the other side of the housing; when the housing is held, the finger ring is adapted to cooperate with the fingers, thereby preventing the housing from slipping off.

[0014] Preferably, the other side of the housing is provided with a mounting groove, and the ring is rotatably mounted in the mounting groove, thereby allowing the ring to be hidden or rotated out of the mounting groove.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] This invention features a gripping part formed by indenting the two sides of the housing, with the gripping part and the two sides of the housing being chamfered for a smooth transition. This reduces the width of the housing, making it easier for workers to grip and improving the grip feel and grip strength. At the same time, the chamfering prevents the edges of the gripping part from causing hard pressure on the worker's hand, and the chamfering also allows for a better fit with the hand, further enhancing the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the shell structure of this utility model.

[0019] Figure 3 This is a schematic diagram showing the fit between the cover and the rear side of the shell of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure when the cover and the front side of the shell of this utility model are fitted together.

[0021] Figure 5This is a schematic diagram of the protective block structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the specific structure of the protective block of this utility model.

[0023] In the diagram: 1. Housing; 2. Adjustment device; 3. Probe head; 4. Crank handle; 5. Protective block; 501. Corner block; 6. Grip; 7. Reinforcing rib; 8. Cover; 9. Raised section; 10. Finger ring; 11. Mounting groove; 12. Groove; 13. Snap-on structure; 1301. Snap-on groove one; 1302. Snap-on post one; 1303. Snap-on groove two; 1304. Snap-on post two. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] One preferred embodiment of this application, such as Figures 1 to 6 As shown, a housing structure for a leak detection instrument includes a housing 1. The lower middle portions of both sides (left and right sides) of the housing 1 are recessed inwards to form grip portions 6. The grip portions 6 are seamlessly integrated with the sides of the housing 1 through chamfering. It is understood that the inward recesses reduce the dimensions of the sides of the housing 1 (i.e., the width of the housing 1), making it easier for operators to grip, improving the feel and grip strength. Simultaneously, the chamfering prevents the edges of the grip portions 6 from causing harsh pressure on the operator's hands, and also allows for a better fit to the hand, further enhancing the user experience.

[0028] Specifically, such as Figure 2As shown, the recessed grip portion 6 can have various structural shapes, such as an arc shape. This application uses a "V" shaped structure, and a reinforcing rib 7 is provided in the middle of the grip portion 6. The design of the reinforcing rib 7 improves the strength of the housing 1. Furthermore, the reinforcing rib 7 allows the operator's hand to better fit the grip portion 6 when holding the housing 1, further improving the grip feel, preventing hand slippage, and ensuring smooth operation of the testing work. In addition, the reinforcing rib 7 also serves a decorative purpose, making the overall appearance of the housing 1 more aesthetically pleasing.

[0029] In one embodiment of this application, such as Figure 2 As shown, protective blocks 5 are installed at each of the four corners of the housing 1. These protective blocks 5 can be made of rubber, which acts as a buffer in the event of a collision or drop, greatly reducing the probability of instrument damage. The protective blocks 5 are installed and engaged with the housing 1 via a snap-fit ​​structure 13. It should be noted that in existing technologies, protective blocks 5 are generally fixed to the housing 1 using screws or glue, a rather cumbersome method, especially inconvenient during subsequent installation and removal. The snap-fit ​​structure 13, however, simplifies and speeds up the installation and removal of the protective blocks 5, significantly improving work efficiency.

[0030] Specifically, such as Figure 5 and Figure 6 As shown, the protective block 5 includes a pair of corner blocks 501. The snap-fit ​​structure 13 includes a snap-fit ​​post 1302 and a snap-fit ​​groove 1301. The snap-fit ​​post 1302 is installed on the inner side of the corner block 501, and the snap-fit ​​groove 1301 is located on the corner side of the housing 1. It can be understood that during installation, the snap-fit ​​post 1302 on the inner side of the corner block 501 is inserted into the snap-fit ​​groove 1301 at the corner (the two can be an interference fit), thereby realizing the installation of the protective block 5.

[0031] Furthermore, to improve the stability of protective block 5 after installation, such as... Figure 6 As shown, the snap-fit ​​structure 13 also includes a second snap-fit ​​post 1304 and a second snap-fit ​​groove 1303, which are respectively located on opposite sides of the two corner blocks 501. It can be understood that when the protective block 5 is installed, that is, after the corner block 501 is inserted into the corner of the housing 1, the second snap-fit ​​post 1304 and the second snap-fit ​​groove 1303 on the two corner blocks 501 will also engage (the two can also be an interference fit), and the two corner blocks 501 are in a mating engagement state.

[0032] This shows that, Figure 5As shown, after the protective block 5 is installed on the housing 1, it is limited once by the action of the first locking post 1302 and the first locking slot 1301, and then limited a second time by the action of the second locking post 1304 and the second locking slot 1303. This double-limiting and locking mechanism greatly improves the stability of the protective block 5 after installation.

[0033] In one embodiment of this application, such as Figure 3 and Figure 4 As shown, a cover 8 is movably mounted on one side of the housing 1. Understandably, when the cover 8 is in use, it can move and abut against one side of the housing 1 (i.e., the operating surface on the front of the housing 1) to protect the front of the housing 1 from dust and impurities. When the cover 8 is not in use, it can move and abut against the other side of the housing 1 (i.e., the rear or back side of the housing 1). This ensures that the opened cover 8 does not affect the operator's grip or operation, greatly improving convenience.

[0034] This application does not specifically limit the movable installation method of the housing 1. The following two specific embodiments are provided for reference:

[0035] Structure 1: such as Figure 3 and Figure 4 As shown, a connecting plate can be hinged to the outside of one side of the housing 1. One end of the connecting plate is hinged to the cover 8, so that the cover 8 can rotate around the hinge point between the connecting plate and the housing 1, and the hinge point between the connecting plate and the cover 8, to achieve the fit between the cover 8 and the front and rear sides of the housing 1. Structure 2 (not shown): A flexible belt (such as a cloth belt or nylon belt) can be fixedly installed on one side of the housing 1, and one end of the flexible belt is connected to the cover 8.

[0036] In this embodiment, as Figure 1 As shown, a universal joint is installed at the top of the housing 1, and an adjustment device 2 is installed at one end of the universal joint. The probe 3 is mounted on the adjustment device 2, which allows for automatic adjustment of the position of the probe 3, thereby improving the flexibility of the device. Furthermore, a crank 4 can be provided on one side of the housing 1, and the crank 4 is electrically connected to the adjustment device 2. Of course, the probe 3 and the universal joint are commonly used components in leak detectors and are common knowledge, so they will not be described in detail.

[0037] For example, the adjusting device 2 is one of a telescopic cylinder, a telescopic hydraulic cylinder, or an electric push rod, while the crank 4 can rotate back and forth. When the crank 4 rotates forward, the adjusting device 2 causes the probe 3 to extend; conversely, when the crank 4 rotates backward, the adjusting device 2 causes the probe 3 to retract. Compared to control via buttons, the design of the crank 4 allows for more convenient and flexible adjustment of the adjusting device 2.

[0038] Furthermore, a protrusion 9 is provided on the cover 8 to protect the crank handle 4 when the cover is closed. Simultaneously, the protrusion 9 and the crank handle 4 can engage to lock the cover 8 when the cover is closed. A groove 12 is provided on the other side of the housing 1. This is so that when the cover 8 is opened and rotated backward, the protrusion 9 on the cover 8 engages with the groove 12, preventing the protrusion 9 from interfering with the fit between the cover 8 and the rear side of the housing 1. Simultaneously, the engagement of the protrusion 9 and the groove 12 also locks the cover 8.

[0039] It should be noted that in the prior art, the limiting and locking of the cover 8 after it is closed generally requires a snap-fit ​​assembly or a magnetic suction assembly. However, the current method uses a rocker handle 4 located on the housing 1 to limit the cover 8, which simplifies the structure of the entire testing instrument and reduces production costs.

[0040] In one embodiment of this application, such as Figure 3 and Figure 4 As shown, a finger ring 10 is provided on the other side (back side) of the housing 1. It can be understood that when holding the housing 1, for example, the little finger can be inserted into the finger ring 10, or other fingers can be used. This can help to better hold the housing 1, prevent the housing 1 from slipping out of the hand, and improve the safety of use.

[0041] Specifically, a mounting groove 11 is provided on the other side of the housing 1, and the ring 10 is rotatably mounted in the mounting groove 11. That is to say, the ring 10 can be rotated out when in use and can be hidden in the mounting groove 11 when not in use, thus improving aesthetics when not in use. The ring 10 can be made of rubber, which can improve grip comfort, reduce pressure on the fingers, and increase friction between the ring and the fingers.

[0042] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A housing structure for a leak detection instrument, characterized in that, The device includes a housing, with the middle of both sides of the housing recessed inward to form a gripping part, and the gripping part and the two sides of the housing are transitionally fitted by chamfering; The grip portion has a "V" shaped structure, and a reinforcing rib is provided in the middle of the grip portion; A protective block is installed at the corner of the housing. The protective block is connected to the housing through a snap-fit ​​structure. The protective block includes a pair of corner blocks. The snap-fit ​​structure includes a snap post and a slot. The snap post is installed on the inner side of the corner block, and the slot is located on the corner side of the housing. The corner block is adapted to achieve the installation of the protective block through the snap-fit ​​between the snap post and the slot.

2. The housing structure of the leak detection instrument as described in claim 1, characterized in that: The buckle structure also includes a second buckle post and a second buckle groove, which are respectively disposed on opposite sides of the two corner blocks; when the protective block is installed, the second buckle post and the second buckle groove are adapted to engage in a snap-fit ​​relationship.

3. The housing structure of the leak detection instrument as described in claim 1 or 2, characterized in that: A cover is movably mounted on one side of the housing; when the cover is in use, the cover is adapted to move and abut against one side of the housing; when the cover is not in use, the cover is adapted to move and abut against the other side of the housing.

4. The housing structure of the leak detection instrument as described in claim 3, characterized in that: A connecting plate is hinged to one side of the housing, and one end of the connecting plate is hinged to the cover; or a flexible strip is fixed to one side of the housing, and one end of the flexible strip is connected to the cover.

5. The housing structure of the leak detection instrument as described in claim 4, characterized in that: A crank is provided on one side of the housing, which cooperates with the adjustment device on the probe head; a bulge is provided on the cover, and a groove is provided on the other side of the housing; when the cover is in use, the bulge is adapted to cooperate with the crank to lock the cover; when the cover is not in use, the bulge is adapted to cooperate with the groove to lock the cover.

6. The housing structure of the leak detection instrument as described in claim 1, characterized in that: A finger ring is provided on the other side of the housing; when gripping the housing, the finger ring is adapted to cooperate with the fingers, thereby preventing the housing from slipping off.

7. The housing structure of the leak detection instrument as described in claim 6, characterized in that: The other side of the housing is provided with a mounting groove, and the ring is rotatably mounted in the mounting groove, thereby allowing the ring to be hidden or rotated out of the mounting groove.

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