Unloading valve pin mounting tool

Abstract

The utility model provides an unloading valve pin installation tool which comprises a bottom plate and a first air cylinder, the bottom plate is provided with a containing plate, the containing plate is provided with a fixing assembly, the fixing assembly comprises a fixing block, a first supporting and positioning block and a second supporting and positioning block, the top of the fixing block is provided with a U-shaped groove penetrating through the front side wall and the rear side wall of the fixing block, and the first supporting and positioning block is arranged in the U-shaped groove. A pin placement through hole is formed in the right side wall of the fixing block, a limiting through groove penetrating through the front side wall and the rear side wall of the first supporting and positioning block is formed in the top of the first supporting and positioning block, and an L-shaped positioning groove is formed in the front side face of the second supporting and positioning block. The first air cylinder is arranged on the right side of the top of the bottom plate through a support, and an ejector rod is arranged on a front-end push rod of the first air cylinder through a mounting base. According to the unloading valve pin installation tool, through cooperation of the fixing block, the first supporting and positioning block and the second supporting and positioning block on the containing plate, fixing of an elbow joint and a straight connecting piece assembly part can be achieved, and meanwhile pin installation is achieved through an ejector rod on the first air cylinder.

Description

Technical Field

[0001] The utility model belongs to the technical field related to unloading valve processing, and in particular relates to an unloading valve pin installation tool. Background Art

[0002] The unloading valve is installed on the pressure switch. When the pressure reaches the upper limit, the pressure switch disconnects and presses down the unloading valve core through the cover plate to deflate the unloading valve. The purpose is that when the air compressor is started again, there is no gas in the pump head to hinder the starting of the air compressor pump head.

[0003] In order to facilitate the arrangement of internal parts, part of the structure of the unloading valve is assembled by an elbow joint and a straight connector with embedded parts. Specifically, one end of the elbow joint is inserted into one end of the straight connector. Two corresponding pin holes are provided on the outside of the straight connector. A circle of concave rings is provided on the elbow joint located inside the straight connector at positions corresponding to the pin holes. The pin passes through one pin hole, passes through the groove, and comes out from the other pin hole, thereby fixing the elbow joint. In order to improve work efficiency and product qualification rate, a pin installation tool for an unloading valve is developed. Summary of the invention

[0004] The utility model provides a pin installation tool for an unloading valve, which is used for installing the pin, thereby fixing the elbow joint inside a straight connector with parts embedded therein, so as to realize assembly of the two.

[0005] The technical solution adopted by the utility model is:

[0006] A unloading valve pin installation tool comprises a base plate and a first cylinder, the base plate is provided with a placement plate, the placement plate is arranged with a fixing assembly, the fixing assembly comprises a fixing block, a first supporting and positioning block, and a second supporting and positioning block, the top of the fixing block is provided with a U-shaped groove running through its front and rear side walls, the right side wall of the fixing block is provided with a pin placement through hole, and the pin placement through hole runs through the inner wall of the U-shaped groove, the first supporting and positioning block is located in front of the fixing block, the top of the first supporting and positioning block is provided with a limiting through groove running through its front and rear side walls, the second supporting and positioning block is located behind the fixing block, and the front side surface of the second supporting and positioning block is provided with an L-shaped positioning groove; the first cylinder is arranged on the right side of the top of the base plate through a bracket, a mounting seat is provided on the front end push rod of the first cylinder, a push rod is provided on the mounting seat, and the push rod matches the pin placement through hole.

[0007] Preferably, a clearance area is provided at the front of the fixing block located on the left side of the U-shaped groove, and the clearance area is communicated with the U-shaped groove and corresponds to the pin placement through hole.

[0008] Preferably, two slide rails are arranged on the base plate along the front-rear direction thereof, a slider is arranged on the slide rails, the placement plate is movably arranged above the two slide rails through the slider, and a second cylinder for driving the placement plate to move back and forth is also arranged on the base plate.

[0009] Preferably, a proximity switch for detecting the moving position of the placement plate is provided on the rear side of the base plate through a bracket.

[0010] Preferably, a linkage plate is provided on the front side of the placement plate, a T-shaped through slot is opened on the linkage plate, an I-shaped joint is provided on the telescopic shaft end of the second cylinder, and the front T-shaped portion of the I-shaped joint is movably arranged in the T-shaped through slot.

[0011] Preferably, a first limiting rod is horizontally arranged front and rearward on the bottom plate located at the rear side of the two slide rails through a bracket, and a second limiting rod is vertically arranged on the bottom plate located at the front side of the two slide rails.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the unloading valve pin installation tool can realize the fixation of the elbow joint and the straight connector assembly through the cooperation of the fixed block, the first positioning support block and the second positioning support block on the placement plate, and at the same time utilize the push rod on the first cylinder to realize the installation of the pin; in addition, the placement plate is movably arranged, and when not started, the push rod and the pin placement through hole on the fixed block are not in the same straight line, which can avoid accidents caused by misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0014] Figure 2 A simplified diagram of the structure for placing fixed components on the board.

[0015] Figure 3 This is a simplified diagram of the structure of the elbow fitting assembled with the straight connector but without the pins inserted.

[0016] In the figure: 1, bottom plate; 2, placement plate; 3, first cylinder; 4, slide rail; 5, second cylinder; 6, fixing block; 7, first support and positioning block; 8, second support and positioning block; 9, mounting seat; 10, push rod; 11, proximity switch; 12, linkage plate; 13, T-shaped through slot; 14, I-shaped joint; 15, first limiting rod; 16, second limiting rod; 61, U-shaped slot; 62, pin placement through hole; 63, clearance area; 71, limiting through slot; 81, L-shaped positioning slot; 100, straight connector; 101, first connecting part; 102, second connecting part; 103, third connecting part; 104, pin through hole; 105, convex ring; 200, elbow joint; 201, limiting ring; 202, cylinder body; 203, L-shaped tube body. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described below in combination with specific implementation methods. The drawings are only used for exemplary descriptions, and only show schematic diagrams rather than physical drawings, and cannot be understood as limitations of this patent; it is understandable to those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted.

[0018] like Figure 3 As shown, the straight connector 100 is composed of a first connector 101, a second connector 102, and a third connector 103 of different diameters. The end of the first connector 101 away from the second connector 102 is provided with two corresponding pin holes 104, and the end of the first connector 101 close to the second connector 102 is provided with a circle of convex rings 105. Parts are assembled inside the straight connector. The elbow connector 200 is L-shaped, and its mounting portion is inserted into the straight connector. The mounting portion is provided with a circle of grooves at positions corresponding to the pin holes to facilitate the passage of the pins. The limiting ring 201 connected to the mounting portion is located outside the straight connector and abuts against the first connector. It also has a barrel portion 202 and an L-shaped tube body 203 for connecting the barrel portion 202 and the limiting ring 201. The pin enters from a pin through hole of the straight connector, passes through the groove of the elbow joint installation part, and comes out from another pin through hole. Due to the action of the pin, the installation part of the elbow joint cannot be detached from the first connection part, thereby achieving fixation of the elbow joint and the straight connector after assembly.

[0019] like Figure 1 , Figure 2 As shown, the unloading valve pin installation tool of the utility model comprises a bottom plate 1 and a first cylinder 3. A placement plate 2 is arranged on the bottom plate. A fixing assembly is arranged on the placement plate 2. The fixing assembly comprises a fixing block 6, a first supporting and positioning block 7, and a second supporting and positioning block 8. A U-shaped groove 61 is provided on the top of the fixing block 6 and runs through the front and rear side walls thereof. A pin placement through hole 62 is provided on the right side wall of the fixing block 61, and the pin placement through hole 62 runs through the inner wall of the U-shaped groove. The first supporting and positioning block 7 is located at the fixing block 6. 6, a limiting through groove 71 penetrating through the front and rear side walls is provided on the top of the first supporting positioning block 7, and the second supporting positioning block 8 is located behind the fixing block 6, and an L-shaped positioning groove 81 is provided on the front side of the second supporting positioning block 8; the first cylinder 3 is arranged on the right side of the top of the base plate through a bracket, and a mounting seat 9 is arranged on the front push rod of the first cylinder 3, and a push rod 10 is arranged on the mounting seat 9, and the push rod 10 matches the pin placement through hole 62 and can be inserted into the pin placement through hole to push the pin to move.

[0020] This technical solution can be understood as a situation where the placement plate is fixed. At this time, the pin placement holes on the push rod and the fixed block are in the same straight line. After the elbow joint and the straight connector are placed together on the fixed assembly and fixed, the pin is inserted into the pin placement hole, the switch is started, the first cylinder is actuated, the push rod moves and is inserted into the pin placement hole and pushes the pin through the two pin holes of the straight connector to achieve the installation of the pin.

[0021] The elbow joint and the straight connector assembly are matched with the fixing assembly in this way: the installation part of the elbow joint is inserted into the first connection part of the straight connector, at this time, the two are movably matched, and then the two are placed together on the fixing assembly to achieve fixation. Specifically, the first connection part 101 of the straight connector 100 is located in the U-shaped groove 61 of the fixing block 6, the rear end convex ring 105 of the first connection part 101 is located at the rear side of the U-shaped groove and is attached to the rear side of the fixing block, and the rear end face of the third connection part 103 abuts against the front side of the L-shaped positioning groove 81 of the second support positioning block 8, and the lower end is tangent to the bottom surface of the L-shaped positioning groove 81; the front side of the limiting ring 201 of the elbow joint 200 is placed against the rear side of the first positioning support block 7, and the L-shaped tube body 203 of the elbow joint 200 is located in the limiting through groove 71 of the first positioning support block 7, and the top of the first positioning support block 7 is attached to the lower end face of the barrel 202. The structures of the elbow joint and the straight connector are used to design matching fixing components, and multi-directional limiting is achieved through the first connecting part convex ring, the limiting ring of the elbow joint, the L-shaped tube body, etc. After placement, the pin through hole on the straight connector and the pin placement through hole on the fixing block can be accurately positioned, which facilitates the installation of the pin.

[0022] In order to ensure the installation effect, the length of the pin should be greater than its use length. Therefore, a clearance area 63 is provided at the front of the fixing block 6 on the left side of the U-shaped groove 61. The clearance area 63 is connected to the U-shaped groove 61 and corresponds to the pin placement through hole 62. This design can prevent the exposed pin from breaking after installation, which is convenient for later processing.

[0023] In the best embodiment, considering that the pin placement holes on the top rod and the fixed block are in the same straight line, a safety accident may occur in case of misoperation. Therefore, the placement plate is designed to be movable. When installing the pin, the pin placement holes on the fixed block are not in the same straight line with the top rod. Specifically, two slide rails 4 are arranged on the bottom plate 1 along its front and rear directions, and a slider is arranged on the slide rail. The placement plate 2 is movably arranged above the two slide rails 4 through the slider. The bottom plate 1 is also provided with a second cylinder 5 for driving the placement plate 2 to move back and forth. When not started, under the action of the second cylinder, the placement plate is located in front of the slide rail, away from the second cylinder and its push rod. The elbow joint and the straight connector assembly are placed on the fixed component, and the pin is inserted into the pin placement hole. Then the switch is started, and the second cylinder is actuated to drive the placement plate to move backward to a certain position. At this time, the pin placement hole on the fixed component is aligned with the push rod on the first cylinder. Then the first cylinder is actuated, the push rod moves to insert into the pin placement hole and push the pin through the two pin holes of the straight connector to achieve the installation of the pin. The air path layout of the first cylinder and the second cylinder, the switch installation, and the execution of the two cylinders in sequence are all conventional technical features in the industry, so they are not described in detail. A mounting plate is reserved on the back side of the base plate to facilitate the arrangement of solenoid valves, throttle valves, etc.

[0024] Furthermore, a proximity switch 11 for detecting the moving position of the placement plate is provided on the rear side of the base plate 1 through a bracket, and the proximity switch corresponds to the rear side of the placement plate. The proximity switch is used to detect the moving position of the placement plate, thereby controlling the second cylinder to stop and the first cylinder to start, which is relatively more accurate. The proximity switch gives a corresponding signal to control the first cylinder to stop and the second cylinder to start, which is a conventional technical feature in the industry and is therefore not described in detail.

[0025] In order to avoid eccentricity of the second cylinder and thus damage to the cylinder sealing ring, the second cylinder is connected to the placement plate through a floating joint. Specifically, a linkage plate 12 is provided on the front side of the placement plate 2, and a T-shaped through groove 13 is provided on the linkage plate 12. An I-shaped joint 14 is provided at the telescopic shaft end of the second cylinder 5, and the I-shaped joint is a floating joint. The front T-shaped portion of the I-shaped joint 14 is movably arranged in the T-shaped through groove 13, and a threaded blind hole is provided on the rear side of the I-shaped joint 14. The telescopic shaft end of the second cylinder 5 is threadedly arranged in the threaded blind hole and is locked by a nut, and then floatingly connected to the linkage plate through the I-shaped joint 14.

[0026] In addition, in order to prevent the placement plate from falling off the slide rails, a first limiting rod 15 is horizontally arranged front and back through a bracket on the bottom plate 1 located at the rear side of the two slide rails, and a second limiting rod 16 is vertically arranged on the bottom plate located at the front side of the two slide rails.

Claims

1. A relief valve pin installation tool, characterized in that: The invention comprises a bottom plate and a first cylinder, wherein a placement plate is arranged on the bottom plate, and a fixing assembly is arranged on the placement plate, wherein the fixing assembly comprises a fixing block, a first supporting and positioning block, and a second supporting and positioning block, wherein a U-shaped groove penetrating through the front and rear side walls thereof is provided on the top of the fixing block, a pin placement through hole is provided on the right side wall of the fixing block, and the pin placement through hole penetrates to the inner wall of the U-shaped groove, the first supporting and positioning block is located in front of the fixing block, a limiting through groove penetrating through the front and rear side walls thereof is provided on the top of the first supporting and positioning block, the second supporting and positioning block is located behind the fixing block, and an L-shaped positioning groove is provided on the front side surface of the second supporting and positioning block; the first cylinder is arranged on the right side of the top of the bottom plate through a bracket, a mounting seat is provided on the front end push rod of the first cylinder, a push rod is provided on the mounting seat, and the push rod matches the pin placement through hole.

2. The unloading valve pin installation tool according to claim 1 is characterized in that: A clearance area is provided at the front of the fixing block on the left side of the U-shaped groove. The clearance area is communicated with the U-shaped groove and corresponds to the pin placement through hole.

3. The unloading valve pin installation tool according to claim 1 is characterized in that: Two slide rails are arranged on the bottom plate along the front-rear direction, and sliders are arranged on the slide rails. The placement plate is movably arranged above the two slide rails through the sliders, and a second cylinder for driving the placement plate to move back and forth is also arranged on the bottom plate.

4. The unloading valve pin installation tool according to claim 3 is characterized in that: A proximity switch for detecting the moving position of the placement plate is arranged on the rear side of the bottom plate through a bracket.

5. The unloading valve pin installation tool according to claim 3 is characterized in that: A linkage plate is arranged on the front side of the placement plate, a T-shaped through slot is opened on the linkage plate, an I-shaped joint is arranged on the telescopic shaft end of the second cylinder, and a front T-shaped portion of the I-shaped joint is movably arranged in the T-shaped through slot.

6. The unloading valve pin installation tool according to claim 3 is characterized in that: A first limiting rod is horizontally arranged front and back on the bottom plate located at the rear side of the two slide rails through a bracket, and a second limiting rod is vertically arranged on the bottom plate located at the front side of the two slide rails.

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