Pressure display device with adjusting function for air compressor

Abstract

A pressure display device with an adjusting function of an air compressor comprises a main body, a display panel and a pointer mechanism. The main body is provided with a connecting pipe which can be communicated and connected with a cylinder of an air compressor, and is provided with two corresponding side walls; the display panel is combined on the main body and can linearly move between the two side walls, the display panel is combined with a pressure value meter and is provided with a sliding rod in an extending manner, and the sliding rod is sleeved with a knob; the pointer mechanism is arranged in the connecting pipe of the main body, and a pointer connected with the pointer mechanism is located outside the connecting pipe and relatively located in the area of the pressure value meter; therefore, the display panel can move left and right through the sliding rod, and then the position of the display panel is fixed by screwing the knob, so that the relative position of the pressure value meter of the display panel and the pointer can be adjusted, the accuracy of the pressure display device can be finely adjusted in real time, and the convenience of assembly and operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure display device with adjustment of air compressor, in particular to provide a pressure display device with the relative position of the pressure value table and the pointer of the display board can be adjusted or corrected at any time, and the pressure display device with fine adjustment pressure precision is obtained. BACKGROUND

[0002] At present, the vehicle tire or various inflators (such as air bed, air boat, etc.) mainly need to use air compressor (or inflator) as the main inflation equipment, so as to effectively save manpower and time; in addition, the vehicle tire needs to use air compressor as the inflation equipment, so as to accurately control the tire pressure, avoid the tire pressure shortage, and improve the vehicle driving safety.

[0003] As for the working principle of the air compressor, the internal motor directly drives the crankshaft to make the crankshaft rotate, and then drives the connecting rod to make the piston reciprocate up and down, so as to cause the volume change of the cylinder, complete the compression and discharge of the gas with pressure, and finally inflate the object.

[0004] However, if the existing air compressor needs to add a pressure gauge, a gas hole is additionally added on the cylinder of the air compressor, and a plastic pipe is additionally arranged, one end of the plastic pipe is connected to the gas hole of the cylinder, and the other end is connected to the pressure gauge; then, a fixing sleeve is arranged at the connection between the two ends of the plastic pipe and the cylinder and the pressure gauge respectively to fix the plastic pipe, so as to complete the installation of the pressure gauge.

[0005] The existing mechanical pressure gauge may have poor precision after manufacturing, for example, the pointer of the pressure gauge is not located at the zero position; once the pressure gauge has poor precision, it must be disassembled and reassembled to correct the precision; in this way, the pressure gauge is not convenient to assemble, and the assembly time and cost burden of the pressure gauge are increased.

[0006] Therefore, how to provide a pressure display device capable of adjusting or correcting the relative position between the pressure value table and the pointer of the pressure gauge at any time, and having fine adjustment or correction of the precision of the pressure gauge, is the main problem to be solved by the utility model. UTILITY MODEL CONTENT

[0007] The utility model mainly provides a pressure display device with adjustment of air compressor, especially with a preset air compressor cylinder is connected, it includes a main part, a display board and a pointer mechanism, the main part is equipped with a containing space and is equipped with the connecting pipe that communicates with the containing space, the connecting pipe one end is equipped with the first pipe orifice towards outside and its other end is equipped with the second pipe orifice towards the containing space, make by the first pipe orifice of connecting pipe and the cylinder of air compressor communicate connection, and the main part is equipped with two corresponding side walls, and is respectively in two side walls its inner wall surface is equipped with the corresponding first sliding groove, one side wall is equipped with a second sliding groove below its first sliding groove, the display board is combined on the main part, and is combined with a pressure value table, and the display board its two corresponding sides respectively is equipped with the sliding part, two sliding parts and the two first sliding grooves of main part corresponding combination, make the display board can have linear movement between the two side walls of main part, and the display board in its one side extends and is equipped with a sliding rod, the sliding rod corresponds in the second sliding groove of main part and is combined with a knob, the pointer mechanism sets up in the connecting pipe of main part, the pointer mechanism is connected with a pointer, the pointer sets up in the connecting pipe outside and is located in the containing space, and the pointer is opposite in the area of the pressure value table of display board.

[0008] Further, the display board is internally provided with an insertion space with an opening, and the pressure value table is arranged in the insertion space.

[0009] Further, the display board is of transparent material, and the surface of the pressure value table has a fluorescent coating.

[0010] Further, the display board is of transparent fluorescent material.

[0011] Further, the sliding rod is provided with threads, and the knob is internally provided with threads, and the knob can rotate clockwise or counterclockwise on the sliding rod.

[0012] Further, the pointer mechanism comprises a piston, a push rod, a spring, a cover member and the pointer, one end of the piston is combined with the push rod, and the end of the piston combined with the push rod is further sleeved with the spring, the spring is opposite to the outside of the push rod, the cover member is sealingly combined with the second pipe orifice of the connecting pipe, and the cover member is provided with a through hole, the other end of the push rod can pass through the through hole to extend outside the connecting pipe and be combined with the pointer.

[0013] Further, the main part is combined with a baffle at the bottom surface position of the containing space.

[0014] Further, the cylinder of the air compressor is provided with at least two gas outlet pipes, and the main part is connected with the gas outlet pipes of the cylinder through the first pipe orifice of the connecting pipe.

[0015] The utility model has the advantages of:

[0016] The sliding rod and the knob of the display board are respectively provided with threads, so that the knob can be screwed and rotated on the sliding rod; when the knob is rotated to the bottom end of the sliding rod (i.e. in the locked state), the knob is tightly pressed against the side wall of the main body, so that the display board is fixedly combined with the main body; on the contrary, when the knob is rotated to the top end of the sliding rod (i.e. in the unlocked state), the knob is not tightly pressed against the side wall of the main body, so that the display board can be moved left and right between the two side walls of the main body to adjust or correct the position.

[0017] The main technical features of the utility model lie in that the display board can be linearly moved between the two side walls of the main body, and the sliding rod and the knob are arranged on the display board, so that the display board can be adjusted and fixed on the main body; in this way, when the assembled pressure display device has poor accuracy (i.e. when the pressure gauge pointer is not zeroed), the display board can be moved left and right through the sliding rod, and the position of the display board is fixed through the knob, so that the relative position between the pressure value table and the pointer of the display board is adjusted, the pointer can be located at the zero position of the pressure value table, the accuracy of the pressure display device is immediately fine-tuned or corrected, and the convenience of assembly and operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model has the pressure display device with adjustment combined with the appearance of an air compressor.

[0019] Figure 2 The utility model has the pressure display device with adjustment combined with the interior of an air compressor.

[0020] Figure 3 The utility model has the pressure display device with adjustment combined with the cylinder of an air compressor.

[0021] Figure 4 The utility model has the pressure display device with adjustment combined with the cylinder of an air compressor.

[0022] Figure 5 The utility model has the pressure display device with adjustment combined with the cylinder of an air compressor.

[0023] Figure 6 The utility model has the pressure display device with adjustment combined with the cylinder of an air compressor.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1, main body

[0026] 10, accommodating space

[0027] 11, connecting pipe

[0028] 111、first port

[0029] 112、second port

[0030] 12、side wall

[0031] 121、first chute

[0032] 122、second chute

[0033] 13、baffle

[0034] 2、display panel

[0035] 20、insertion space

[0036] 21、pressure value table

[0037] 22、slide portion

[0038] 23、slide rod

[0039] 24、knob

[0040] 3、pointer mechanism

[0041] 31、piston

[0042] 32、push rod

[0043] 33、spring

[0044] 34、cover member

[0045] 341、perforation

[0046] 35、pointer

[0047] 4、air compressor

[0048] 41、cylinder

[0049] 411、outlet pipe

[0050] 42、piston mechanism

[0051] 43、motor

[0052] 5、inflator DETAILED DESCRIPTION

[0053] For the convenience and simplicity of understanding other features and advantages of the present application and the effects achieved, the present application will be described in detail in conjunction with the drawings, and the features and advantages of the present application will be described in detail. The following examples further illustrate the present application, but do not limit the scope of the present application in any way.

[0054] Please refer to Figures 1 to 6The utility model discloses an air compressor's pressure display device with adjustment, especially in combination with an air compressor 4, the air compressor 4 is equipped with a cylinder 41, and the cylinder 41 is equipped with at least two air outlet pipes 411, and the air compressor 4 is equipped with a piston mechanism 42 in the cylinder 41, and the piston mechanism 42 is connected with a motor 43, so that the piston mechanism 42 is driven by the motor 43, and the air compressor 4 is connected with the inflating equipment 5 from one air outlet pipe 411.

[0055] The utility model discloses an air compressor's pressure display device with adjustment, especially in combination with an air compressor 4, the air compressor 4 is equipped with a cylinder 41, and the cylinder 41 is equipped with at least two air outlet pipes 411, and the air compressor 4 is equipped with a piston mechanism 42 in the cylinder 41, and the piston mechanism 42 is connected with a motor 43, so that the piston mechanism 42 is driven by the motor 43, and the air compressor 4 is connected with the inflating equipment 5 from one air outlet pipe 411.

[0056] The main body 1 is equipped with a containing space 10 and is equipped with the connecting pipe 11 that communicates with the containing space 10, and the connecting pipe 11 one end is equipped with the first pipe mouth 111 towards the outside and the other end is equipped with the second pipe mouth 112 towards the containing space 10, and the main body 1 can be communicated with the air outlet pipe 411 of the cylinder 41 of the air compressor 4 through the first pipe mouth 111 of the connecting pipe 11 (such as Figure 3 The main body 1 is equipped with two corresponding side walls 12, and the first sliding groove 121 is arranged on the inner wall of the two side walls 12 respectively, and the second sliding groove 122 is arranged below the first sliding groove 121 of one side wall 12 (such as Figure 4 、 Figure 5 The main body 1 is equipped with two corresponding side walls 12, and the first sliding groove 121 is arranged on the inner wall of the two side walls 12 respectively, and the second sliding groove 122 is arranged below the first sliding groove 121 of one side wall 12 (such as

[0057] The display board 2 is combined on the main body 1, and the inside of the display board 2 is equipped with the open placing space 20, and the pressure value table 21 (such as Figure 6 The display board 2 is combined on the main body 1, and the inside of the display board 2 is equipped with the open placing space 20, and the pressure value table 21 (such as

[0058] The pointer mechanism 3 is arranged in the connecting pipe 11 of the main body 1, and comprises a piston 31, a push rod 32, a spring 33, a cover 34 and a pointer 35; one end of the piston 31 is combined with the push rod 32, and the end of the piston 31 combined with the push rod 32 is further sleeved with the spring 33, so that the spring 33 is located outside the push rod 32; the cover 34 is sealingly combined with the second pipe opening 112 of the connecting pipe 11, and the cover 34 is provided with a through hole 341, so that the other end of the push rod 32 can pass through the through hole 341 to extend outside the connecting pipe 11 and be combined with the pointer 35; the pointer mechanism 3 is combined with the pointer 35, the pointer 35 is arranged outside the connecting pipe 11 and located in the containing space 10, and the pointer 35 is located in the region of the pressure value table 21 of the display plate 2.

[0059] When the air compressor 4 sends out gas through the gas outlet pipe 411 of the cylinder 41, the gas can enter the first pipe opening 111 of the connecting pipe 11 and push the piston 31, and then the piston 31 sequentially drives the push rod 32 and the pointer 35 to move, so that the pointer 35 is located in the range of the values or scales arranged in the pressure value table 21, thereby indicating the current tire pressure value.

[0060] When the knob 24 is rotated towards the bottom end of the sliding rod 23 (i.e. in the locked state), the knob 24 is tightly pressed against the side wall 12 of the main body 1, so that the display plate 2 is fixedly combined with the main body 1; on the contrary, when the knob 24 is rotated towards the top end of the sliding rod 23 (i.e. in the unlocked state), the knob 24 is not tightly pressed against the side wall 12 of the main body 1, so that the display plate 2 can be slightly adjusted in position by moving left and right between the two side walls 12 of the main body 1 (such as shown in the figure). Figure 4

[0061] Therefore, the main technical features of the utility model are that the display plate 2 can be linearly moved between the two side walls 12 of the main body 1, and the sliding rod 23 and the knob 24 are arranged on the display plate 2, so that the display plate 2 can be adjusted and fixed by moving left and right on the main body 1; in this way, when the assembled pressure display device needs to be corrected in accuracy (i.e. when the pointer 35 is not zeroed), the display plate 2 can be moved left and right by the sliding rod 23, and then the position of the display plate 2 can be fixed by the knob 24, so that the relative position between the pressure value table 21 and the pointer 35 of the display plate 2 can be adjusted, and the pointer 35 can be located at the zero position of the pressure value table 21, thereby achieving the accuracy correction or fine adjustment of the pressure display device, and completely eliminating the need to disassemble the pressure display device for accuracy correction, so as to improve the assembly and operation convenience.​

Claims

1. A pressure display device for an air compressor with adjustable pressure, particularly one connected in communication with a pre-set air compressor cylinder, characterized in that, The pressure display device comprises: a main body provided with a containing space and a connecting pipe communicating with the containing space, the connecting pipe being provided with a first pipe opening facing outside at one end and a second pipe opening facing the containing space at the other end, the first pipe opening of the connecting pipe being connected with a cylinder of the air compressor, the main body being provided with two corresponding side walls, each of the side walls being provided with a corresponding first sliding groove on the inner wall surface, and one of the side walls being provided with a second sliding groove below the first sliding groove; a display plate combined with the main body, the display plate being combined with a pressure value table, and the display plate being provided with sliding portions on two corresponding side edges, the two sliding portions being combined with the two first sliding grooves correspondingly, so that the display plate can move linearly on the main body, the display plate being provided with a sliding rod extending from one side edge, the sliding rod being located in the second sliding groove correspondingly and being combined with a knob; a pointer mechanism arranged in the connecting pipe, the pointer mechanism being connected with a pointer, the pointer being arranged outside the connecting pipe and located in the containing space, and the pointer being located in a region of the pressure value table correspondingly; when the knob is rotated towards the bottom end of the sliding rod, the knob is tightly pressed against the side wall of the main body to be fixed, and the display plate can be fixedly combined with the main body.

2. The pressure adjusting and display device for an air compressor according to claim 1, wherein The display plate is provided with an open containing space inside, and the pressure value table is arranged in the containing space.

3. The pressure adjusting and displaying device for an air compressor according to claim 2, wherein The display plate is made of transparent material, and the surface of the pressure value table is provided with a fluorescent coating.

4. The pressure adjusting and display device for an air compressor according to claim 2, wherein The display plate is made of transparent fluorescent material.

5. The pressure adjusting and displaying apparatus for an air compressor according to claim 1, wherein The sliding rod is provided with threads, and the knob is provided with threads inside, the knob being able to rotate clockwise or counterclockwise on the sliding rod.

6. The pressure adjusting and displaying apparatus for an air compressor according to claim 1, wherein The pointer mechanism comprises a piston, a push rod, a spring, a cover member and the pointer, one end of the piston being combined with the push rod, the end of the piston combined with the push rod being further sleeved with the spring, the spring being located outside the push rod correspondingly, the cover member being sealingly combined with the second pipe opening of the connecting pipe, and the cover member being provided with a through hole, the other end of the push rod being able to pass through the through hole to extend outside the connecting pipe and be combined with the pointer.

7. The pressure adjusting and displaying apparatus for an air compressor according to claim 1, wherein The main body is provided with a baffle combined at the bottom surface position of the containing space.

8. The pressure adjusting and displaying apparatus for an air compressor according to claim 1, wherein The cylinder of the air compressor is provided with at least two gas outlet pipes, and the main body is connected with the gas outlet pipes of the cylinder through the first pipe opening of the connecting pipe.

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