A housing structure for a pressure gauge

Abstract

The utility model discloses a kind of shell structures of pressure gauge, it is related to instrument technical field, and its technical scheme main point is: including watch case, joint is arranged on watch case, joint includes nut and screw head, nut and screw head between being provided with mounting section, mounting section is equipped with sealing ring, sealing ring has elasticity, sealing ring is used to with equipment connecting end surface conform, annular embedding groove for sealing ring embedding is opened in mounting section side wall along circumference, positioning pin is set on the inner side wall of sealing ring, positioning hole for positioning pin insertion is opened in the inner side wall of annular embedding groove.The shell structure of the utility model's pressure gauge can hold nut and be screwed, so that screw head is connected on equipment by thread, so that sealing ring and equipment connecting end surface conform, and in the process of screw head is continuously screwed in and is extruded, so that elastic deformation will occur along with it, realize and equipment end surface closely conform, so as to play better sealing effect, it is more convenient and simple to operate, save time and effort.

Description

TECHNICAL FIELD

[0001] The utility model relates to instrument technical field, concretely is a casing structure of pressure gauge. BACKGROUND

[0002] Pressure gauge is widely used in industrial production and daily life, and is mainly used for measuring pressure parameters in various systems or equipment.

[0003] At present, pressure gauge usually includes gauge shell, is provided with dial on the gauge shell, shows pressure value, is marked with scale and unit on the dial, is provided with pointer on the dial, changes pressure into rotation of pointer through mechanical transmission, thereby indicating pressure value, is provided with dial cover on the gauge shell, the dial cover is usually made of transparent material, is used for protecting dial and pointer, prevents dust, moisture and other impurities from entering, and is provided with joint on the gauge shell, is used for connecting with equipment. UTILITY MODEL CONTENTS

[0004] The utility model discloses a casing structure of pressure gauge.

[0005] The utility model discloses a casing structure of pressure gauge, including gauge shell, be provided with joint on the gauge shell, the joint includes screw cap and screw head, be provided with mounting section between screw cap and screw head, the mounting section is equipped with sealing ring, the sealing ring has elasticity, the sealing ring is used for with equipment connecting end face and fits, the mounting section lateral wall is set up and is used for the annular embedding slot of sealing ring embedding along the circumference, the inner side wall of sealing ring is provided with positioning pin, the inner side wall of annular embedding slot is set up and is used for the positioning hole of positioning pin insertion, one end of sealing ring is provided with first connecting section, and the other end is provided with second connecting section for with first connecting section and fits, first connecting section and second connecting section are detachably connected together through connecting component between first connecting section and second connecting section.

[0006] As a further setting of the utility model, the connecting component includes magic tape hook face setting on the first connecting section and magic tape wool face setting on the second connecting section, and the magic tape hook face and the magic tape wool face are matched with each other.

[0007] As a further setting of the utility model, the first connecting section bottom is provided with force slot.

[0008] As a further setting of the utility model, a plurality of anti-skid grooves are formed on the bottom surface of the sealing ring.

[0009] As a further setting of the utility model, a cavity is formed in the sealing ring.

[0010] As a further setting of the utility model, the sealing ring is made of rubber material.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses when installing the sealing ring, can expand and remove the sealing ring to the installation section position, make it embed annular embedding groove, simultaneously make the positioning pin insert the positioning hole, then through the limiting of annular embedding groove to sealing ring, the limiting of positioning hole to positioning pin, can guarantee the connection firmness of sealing ring on the installation section, then when installing the pressure gauge, can hold the screw nut and carry out the screwing, make the screw head screw thread connection on the equipment, thereby make sealing ring and equipment connection end face fit, and in the process of screw head ceaseless screwing, are extruded, thereby will along with the elastic deformation of happening, realize the close fit with equipment end face, thereby play good sealing effect, operation is convenient and simple, save time and labor, and when needing to replace the sealing ring, can remove the connection of connecting assembly to first connecting section and second connecting section, thereby separate first connecting section and second connecting section, then can peel off the sealing ring from the installation section, realize the dismounting, then again make the new sealing ring encircle the circle and embed annular embedding groove, again fit first connecting section and second connecting section, finally through connecting assembly, connect together, can realize the installation of sealing ring on the installation section, through this setting, make the replacement of sealing ring convenient and simple. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the structural schematic diagram of the joint in the utility model;

[0015] Figure 3 It is the structural schematic diagram of the connecting assembly in the utility model;

[0016] Figure 4 It is Figure 3 It is the enlarged structural schematic diagram of A in the utility model.

[0017] Fig. 1, the table shell;2, joint;3, screw nut;4, screw head;5, installation section;6, sealing ring;7, annular embedding groove;8, positioning pin;9, positioning hole;10, first connecting section;11, second connecting section;12, magic tape hook face;13, magic tape hair face;14, force slot;15, anti-skid groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-4 As shown in the figure, a housing structure of a pressure gauge, comprising a gauge housing 1, a joint 2 is arranged on the gauge housing 1, the joint 2 comprises a nut 3 and a screw head 4, and a mounting section 5 is arranged between the nut 3 and the screw head 4, a sealing ring 6 is sleeved on the mounting section 5, the sealing ring 6 has elasticity, the sealing ring 6 is used for abutting with the equipment connecting end face, the sealing ring 6 is made of rubber material, and the elasticity and toughness are good, an annular embedding groove 7 for embedding the sealing ring 6 is formed on the side wall of the mounting section 5 in the circumferential direction, a positioning pin 8 is arranged on the inner side wall of the sealing ring 6, and a positioning hole 9 for inserting the positioning pin 8 is formed on the inner side wall of the annular embedding groove 7, a first connecting section 10 is arranged at one end of the sealing ring 6, and a second connecting section 11 for abutting with the first connecting section 10 is arranged at the other end, and the first connecting section 10 and the second connecting section 11 are detachably connected together through a connecting assembly, so that when the sealing ring 6 is installed, the sealing ring 6 can be expanded and moved to the position of the mounting section 5, embedded in the annular embedding groove 7, and the positioning pin 8 is inserted into the positioning hole 9, so that through the limiting of the annular embedding groove 7 on the sealing ring 6 and the limiting of the positioning hole 9 on the positioning pin 8, the connection firmness of the sealing ring 6 on the mounting section 5 can be ensured, so that when the pressure gauge is installed, the nut 3 can be held and screwed, so that the screw head 4 is threadedly connected on the equipment, so that the sealing ring 6 abuts with the equipment connecting end face, and is extruded in the process of continuously screwing the screw head 4, so that elastic deformation occurs, the tight abutment with the equipment end face is realized, and a good sealing effect is achieved, the operation is convenient and simple, time and labor are saved, and when the sealing ring 6 needs to be replaced, the connection of the connecting assembly to the first connecting section 10 and the second connecting section 11 can be released, so that the first connecting section 10 and the second connecting section 11 are separated, the sealing ring 6 can be peeled off from the mounting section 5, and then the new sealing ring 6 is wound into a ring and embedded in the annular embedding groove 7, the first connecting section 10 and the second connecting section 11 are abutted, and finally the two are connected together through the connecting assembly, so that the installation of the sealing ring 6 on the mounting section 5 can be realized, through the arrangement, the replacement of the sealing ring 6 is convenient and simple, wherein a plurality of anti-skid grooves 15 are formed on the bottom surface of the sealing ring 6, so that the friction coefficient on the bottom surface of the sealing ring 6 is greatly increased, the sealing ring 6 is not easy to slip when abutting with the equipment connecting end face, the sealing performance is better, and a cavity is formed in the sealing ring 6, so that the sealing ring 6 is more prone to deformation under stress.

[0020] Referring to Figure 3 、 Figure 4 As shown in the figure, the connecting assembly comprises a Velcro hook surface 12 arranged on the first connecting segment 10 and a Velcro loop surface 13 arranged on the second connecting segment 11, and the Velcro hook surface 12 and the Velcro loop surface 13 match each other, so that the first connecting segment 10 and the second connecting segment 11 can be fixedly connected together by bonding the Velcro hook surface 12 and the Velcro loop surface 13 together, and the first connecting segment 10 and the second connecting segment 11 can be separated by peeling off the Velcro loop surface 13 and the Velcro hook surface 12, which is relatively convenient and simple to operate. The first connecting segment 10 is provided with a force applying groove 14 at the bottom, so that when the sealing ring 6 needs to be disassembled, the fingers can be inserted into the inside of the force applying groove 14 and then pulled outward, which facilitates peeling off the Velcro hook surface 12 and the Velcro loop surface 13, thereby facilitating disassembly of the sealing ring 6.

[0021] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0022] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A pressure gauge housing structure, comprising a housing (1), wherein a connector (2) is provided on the housing (1), the connector (2) comprising a nut (3) and a screw head (4), characterized in that: An installation section (5) is provided between the nut (3) and the screw head (4). A sealing ring (6) is fitted on the installation section (5). The sealing ring (6) is elastic and is used to fit with the connection end face of the equipment. An annular groove (7) for embedding the sealing ring (6) is provided on the side wall of the installation section (5) along the circumferential direction. A positioning pin (8) is provided on the inner side wall of the sealing ring (6). A positioning hole (9) for inserting the positioning pin (8) is provided on the inner side wall of the annular groove (7). A first connecting section (10) is provided at one end of the sealing ring (6), and a second connecting section (11) for fitting with the first connecting section (10) is provided at the other end. The first connecting section (10) and the second connecting section (11) are detachably connected together by a connecting component.

2. The housing structure of a pressure gauge according to claim 1, characterized in that: The connecting component includes a hook and loop fastener (12) disposed on the first connecting section (10) and a loop and loop fastener (13) disposed on the second connecting section (11), wherein the hook and loop fastener (12) and the loop and loop fastener (13) are matched with each other.

3. The housing structure of a pressure gauge according to claim 2, characterized in that: The first connecting section (10) has a force-applying groove (14) at its bottom.

4. The housing structure of a pressure gauge according to claim 1, characterized in that: The bottom surface of the sealing ring (6) is provided with several anti-slip grooves (15).

5. The housing structure of a pressure gauge according to claim 1, characterized in that: The sealing ring (6) has a cavity inside.

6. The housing structure of a pressure gauge according to claim 1, characterized in that: The sealing ring (6) is made of rubber material.

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