Portable locking mechanism and four-way valve service life detection device

Abstract

The utility model discloses a portable locking mechanism and a four-way valve service life detection device, and the locking mechanism comprises a pedestal which is used for detecting a piece to be detected; the pressing part is assembled on the transmission part, the pressing part comprises a pressing switch and a pressing die, and the pressing switch downwards pushes and presses the pressing die and the base to fix the to-be-tested piece; and the balance part is fixedly connected with the pressing die of the pressing part so that the pressing die can keep vertically pressing in the pressing process. The four-way valve testing fixture is simple in structure, convenient to move and carry, low in cost, capable of quickly testing and fixing a four-way valve without pneumatic devices of an air cylinder and the like, capable of effectively and quickly adjusting and testing different materials according to the sizes of the materials, and high in testing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of four-way valve detection, in particular to a portable locking mechanism and a four-way valve life detection device. Background Art

[0002] The four-way valve is an important component that switches between hot and cold in the air conditioner. Its maximum life span is an absolute indicator that determines the reliability of the air conditioner. During the current production process of air-conditioning piping components in the manufacturing industry, the four-way valve components in the refrigeration circuit may have quality problems, resulting in abnormal problems such as non-reversal or air leakage during the operation of the air-conditioning outdoor unit.

[0003] In order to ensure the quality of each component in the air-conditioning production process, our company will conduct power-on test, reversing test and pressurization test for air leakage on the four-way valve components supplied by outsourced companies. This process is completed manually, which is very cumbersome, and the data is recorded manually. The labor intensity of employees is high and the efficiency is low. There are hidden safety hazards in the manual disassembly and installation of the four-way valve test.

[0004] Moreover, the testing of four-way valves with different material models requires the replacement of different test components (i.e., test base, test mold) to adapt. The test molds used for four-way valve life detection on the market are troublesome to replace, and also involve cylinders and air pipes fixedly connected to the test molds, etc., and the disassembly and replacement efficiency is low. In addition, the four-way valve test station needs to be frequently adjusted or moved, involving multiple cylinder components or complex structures, which makes the detection device too bulky and costly, and also affects the operation of the station and the test efficiency. Therefore, the development of a portable, low-cost four-way valve detection device that can quickly and conveniently replace the test base according to different material models is a problem that needs to be solved urgently. Utility Model Content

[0005] In view of the problems of test base adaptation, replacement and high cost in the above-mentioned four-way valve test, the utility model provides a portable locking mechanism and a four-way valve life detection device, which can effectively realize quick adjustment of tests for different materials according to the material size, has high test efficiency and safety, and has a simple structure, portability and low cost.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a portable locking mechanism, comprising:

[0007] A base, used for detecting the piece to be tested;

[0008] A clamping component is assembled on the transmission component, and the clamping component includes a clamping switch and a clamping mold. The clamping switch pushes the clamping mold downward to fix the test piece with the base;

[0009] The balancing component is fixedly connected to the pressing mold of the pressing component so that the pressing mold can maintain vertical pressing during the pressing process.

[0010] As a further improvement of the utility model, the clamping switch includes a fixed seat and a pushing rod arranged in the fixed seat and extending from the lower end, and a handle arranged on the fixed seat to control the extension of the pushing rod. The pushing rod is connected to the clamping mold so that it is pressed downward under the guidance of the balancing component to clamp the test piece with the base.

[0011] As a further improvement of the utility model, the transmission component includes a sliding seat, a sliding block, a screw rod and a crank, the crank is transmission connected to the screw rod, the sliding seat is provided with a slide rail so that the sliding block can move up and down along the slide rail, the sliding block is transmission connected to the screw rod, and the sliding block is fixedly connected to the clamping component.

[0012] As a further improvement of the present invention, a locking piece is provided on the crank to lock the rotation of the crank.

[0013] As a further improvement of the utility model, the balancing component includes a balancing plate and guide columns arranged on both sides of the balancing plate, guide sleeves are arranged on both sides of the balancing plate and are sleeved on the guide columns, and the pressing mold is arranged below the balancing plate.

[0014] As a further improvement of the utility model, a protruding nozzle connected to the three-way oil port of the four-way valve is provided on the top of the base, and air inlets respectively connected to the protruding nozzles are provided on the sides of the base, and the air inlets are connected to external detection equipment.

[0015] As a further improvement of the present invention, the base is assembled on the bottom plate through a positioning mechanism, a positioning groove is provided in the middle of the bottom plate, and a positioning protrusion is provided at the bottom of the base corresponding to the positioning groove.

[0016] As a further improvement of the utility model, it also includes a positioning and fixing structure, which includes a pressing groove arranged on one side of the positioning groove, a convex strip arranged on the side of the positioning protrusion corresponding to the pressing groove, and a limit block. After the positioning protrusion is placed in the positioning groove, it translates so that the convex strip is inserted into the pressing groove. The limit block is placed in the positioning groove and is located on the side away from the pressing groove or the convex strip to limit the convex strip from retreating from the pressing groove.

[0017] As a further improvement of the present invention, the width of the limit block is smaller than the width of the positioning groove so that after the limit block is placed in the positioning groove, there is space for disassembling or picking up the limit block.

[0018] On the other hand, the utility model adopts the following technical solution: a four-way valve life detection device, including a portable locking mechanism as any one of the above items.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model has the advantages of simple structure, convenience in movement and carrying, low cost, and can quickly realize the test and fixation of the four-way valve without the aid of cylinder pneumatic devices, and can effectively realize the quick adjustment test of different materials according to the size of the materials, and has high test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution, the drawings required for use in the implementation will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a front structural schematic diagram of the locking mechanism of the embodiment.

[0023] Figure 2 It is a side structural schematic diagram of the locking mechanism of the embodiment.

[0024] Figure 3 It is a schematic structural diagram of one direction of the locking mechanism of the embodiment.

[0025] Figure 4 Schematic diagram of the structure of the clamping switch of the embodiment.

[0026] Figure 5 Schematic diagram of the structure of the transmission component of the embodiment.

[0027] Figure 6 It is a structural schematic diagram of the base positioning of the embodiment.

[0028] Figure 7 It is a schematic diagram of the exploded structure of the base positioning of the embodiment.

[0029] The marks in the figure indicate:

[0030] 100: portable frame, 110: base plate, 120: side plate;

[0031] 200: base, 210: bottom plate, 211: positioning groove, 212: pressing groove, 220: positioning convex block, 221: convex strip, 230: limiting block;

[0032] 300: pressing component, 310: pressing switch, 320: pressing mold, 311: fixing seat, 312: pushing rod, 313: handle;

[0033] 400: transmission component, 410: sliding seat, 420: sliding block, 430: screw rod, 440: crank handle, 450: locking member;

[0034] 500: balancing component, 510: balancing plate, 520: guide column, 530: guide sleeve. DETAILED DESCRIPTION

[0035] In order to enable a clear and complete understanding of the technical solution, the utility model is now further explained in conjunction with the embodiments and drawings. Obviously, the recorded embodiments are only some embodiments of the utility model, and all other embodiments obtained by technical personnel in the relevant field without making creative work are within the scope of protection of the utility model.

[0036] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0037] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0038] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0039] The embodiment of the utility model discloses a portable locking mechanism, which has a simple structure and can lock and fix the four-way valve without using cylinder pneumatic components, is low in cost and portable, and is convenient for daily adjustment and moving of the test station. Figure 1 As shown, including:

[0040] The portable frame 100 has a base plate 110 and a side plate 120 perpendicular to the base plate 110;

[0041] The base 200 is used to detect the test piece and is fixed on the substrate 110;

[0042] The pressing component 300 is assembled on the transmission component 400 so that the pressing component 300 is pressed downward under the action of the transmission component 400. The pressing component 300 includes a pressing switch 310 and a pressing mold 320. The pressing switch 310 pushes the pressing mold 320 and the base 200 downward to fix the test piece.

[0043] The balancing component 500 is fixedly connected to the pressing mold 320 of the pressing component 300 so that the pressing mold 320 can maintain vertical pressing during the pressing process.

[0044] Through the above structure, the transmission component 400 can adjust the clamping component 300 in a wide range, so that the clamping component 300 can move up and down to adapt to the test of four-way valves of different materials and sizes. After the adjustment of the transmission component 400 is completed, the four-way valve can be placed in the clamping mold 320 to press down the four-way valve for fixing through the clamping switch 310. The clamping mold 320 and the base 200 are used to fix the four-way valve to be tested to achieve locking. Then, the base 200 is connected to an external detection device to perform life tests such as power-on, pressurization, and reversing of the four-way valve.

[0045] In an optional embodiment, a protruding nozzle connected to the three-way oil port of the four-way valve is provided on the top of the base, and air inlets respectively connected to the protruding nozzles are provided on the sides of the base, and the air inlets are connected to external detection equipment.

[0046] It should be noted that this embodiment does not impose any restrictions on the specific parameters, indicators and testing methods of the four-way valve life test. The technicians can set the specific test items and indicators according to actual usage requirements.

[0047] For better understanding, in an optional implementation, refer to Figure 2 and Figure 4 As shown, the clamping switch 310 includes a fixed seat 311, a pushing rod 312 arranged in the fixed seat 311 and extending from the lower end, and a handle 313 arranged on the fixed seat 311 to control the extension of the pushing rod 312. The pushing rod 312 is connected to the clamping mold 320 so that it is pressed downward under the guidance of the balancing component 500 and clamps the test piece with the base 200.

[0048] This embodiment has a simple structure, is easy to move and carry, and has a low cost. It can quickly implement the test and fixation of the four-way valve without the aid of cylinder pneumatic devices, and can effectively implement fast adjustment and testing of different materials according to the material size, with high testing efficiency.

[0049] For better understanding, in an optional implementation, refer to Figure 2 and Figure 5The transmission component 400 includes a sliding seat 410, a sliding block 420, a screw rod 430 and a crank 440. The sliding seat 410 is fixed on the side plate 120 of the portable frame 100. The crank 440 is transmission-connected with the screw rod 430. A slide rail is provided on the sliding seat 410 to enable the sliding block 420 to move up and down along the slide rail. The sliding block 420 is transmission-connected with the screw rod 430 so that the crank 440 drives the sliding block 420 to move through the screw rod 430 when rotating. The sliding block 420 is fixedly connected to the clamping component 300.

[0050] In this embodiment, the screw rod and the crank are connected via gears (not shown in the figure). In some embodiments, the screw rod and the crank can also be arranged to rotate coaxially, and technicians can make adaptive adjustments based on actual usage requirements.

[0051] In some embodiments, a locking member 450 is provided on the crank 440 for locking the rotation of the crank 440. When in use, the screw rod is rotated by shaking the crank, and the sliding block moves up and down along the slide rail under the action of the screw rod, wherein the screw rod transforms the rotation into the linear motion is a conventional technical means, which will not be elaborated here.

[0052] The sliding block of this embodiment is adjusted to move up and down in a wide range under the control of the crank to adapt to four-way valves of different specifications and models of different materials. After the adjustment is completed, the crank is limited by the locking member to prevent it from rotating under force. At this time, the spatial position adjustment between the pressing mold and the base is completed. The four-way valve to be tested is placed on the base, and the pressing mold is controlled to be pressed down by the pressing switch to fix and press the four-way valve to be tested with the base.

[0053] refer to Figure 2 and 3 The balancing component 500 of the above embodiment plays a guiding role when the transmission component 400 and the clamping switch 310 press down or lift the clamping mold 320, so that the clamping mold 320 always maintains balance and moves linearly in the vertical direction.

[0054] For better understanding, in an optional implementation, the balancing component 500 includes a balancing board 510 and guide posts 520 disposed on both sides of the balancing board 510, the upper end of the guide posts 520 is fixed to the side plate 120 of the portable frame 100 through a clamping block, and the lower end is fixed to the base plate 110, so that the guide posts 520 always remain perpendicular to the base plate 110. Guide sleeves 530 are provided on both sides of the balancing board 510 and are sleeved on the guide posts 520, and the pressing mold 320 is disposed below the balancing board 510.

[0055] Further, in order to solve the problem of rapid assembly of a detachable base for testing four-way valves of different specifications, in an optional embodiment, reference is made to Figure 2 and 6 -7, the base 200 is assembled on the bottom plate 210 through a positioning mechanism, the bottom plate 210 is fixed on the base plate 110 of the portable frame 100, a positioning groove 211 is provided in the middle of the bottom plate 210, and a positioning protrusion 220 is provided at the bottom of the base 200 corresponding to the positioning groove 211.

[0056] This embodiment can be quickly positioned and fixed by the positioning groove and the positioning protrusion. The base can be directly aligned and placed on the bottom plate. The contours of the positioning groove and the positioning protrusion are consistent, which can prevent loosening in the horizontal direction. In the vertical direction, the clamping mold is fixed by pressing down to limit the vertical direction. The base structure and the bottom plate structure can be quickly replaced and accurately positioned to meet the testing requirements of different materials and specifications.

[0057] Furthermore, in order to make the base more stable after replacement, in an optional embodiment, the base is further restricted in the vertical direction by a positioning fixing structure based on the positioning groove and the positioning protrusion. Specifically, refer to Figure 6 and 7 , and also includes a positioning and fixing structure, which includes a pressing groove 212 arranged on one side of the positioning groove 211, a convex strip 221 arranged on the side of the positioning protrusion 220 corresponding to the pressing groove 212, and a limiting block 230. The positioning protrusion of this embodiment has a smaller contour than the positioning groove in the direction of extending the convex strip, so as to provide a space for the positioning protrusion to move horizontally when it is placed in the positioning groove. After being placed in the positioning groove 211, the positioning protrusion 220 moves horizontally so that the convex strip 221 is inserted into the pressing groove 212. The limiting block 230 is placed in the positioning groove 211 and is located on a side away from the pressing groove 211 or the convex strip 221 to limit the convex strip 221 from retreating from the pressing groove 211.

[0058] In some embodiments, to facilitate the removal of the limit block, the width of the limit block is smaller than the width of the positioning groove so that the positioning groove leaves space for disassembling or picking up the limit block after the limit block is placed. Furthermore, to facilitate the removal of the limit block, in some embodiments, a pull ring or a pull rod for lifting the limit block can be provided on the top of the limit block, so that after the limit block is removed, the base can be translated to the position where the limit block is located, so that the convex strip can be removed from the pressing groove and the base can be removed for replacement.

[0059] After the base is positioned by quickly replacing or installing the base in this embodiment, the convex strip and the pressing groove cooperate with each other, and the base is limited by a limit block to prevent the convex strip from withdrawing from the pressing groove, thereby effectively limiting the base in the vertical direction and improving the stability of the base's rapid installation.

[0060] Obviously, the above embodiments are only used to illustrate the structure of the portable locking mechanism of the utility model, and are not intended to limit the protection scope of the utility model. Without departing from the concept of the utility model, those skilled in the art can adjust the above structure so that the utility model can be applied to more specific application scenarios.

[0061] On the other hand, an embodiment of the present utility model further provides a four-way valve life detection device, including a portable locking mechanism as described in any of the above embodiments or optional embodiments.

[0062] The above disclosure is only one or more preferred embodiments of the utility model, which is used to help understand the utility model concept of the technical solution, and is not intended to limit the utility model in other forms. Technical personnel in the relevant field may make other equivalent or customary replacement schemes based on the features defined by the utility model, which still fall within the scope covered by the utility model.

Claims

1. A portable locking mechanism, characterized in that: include: A base, used for detecting the piece to be tested; A clamping component is assembled on the transmission component, and the clamping component includes a clamping switch and a clamping mold. The clamping switch pushes the clamping mold downward to fix the test piece with the base; The balancing component is fixedly connected to the pressing mold of the pressing component so that the pressing mold can maintain vertical downward pressing during the pressing process.

2. A portable locking mechanism according to claim 1, characterized in that: The clamping switch includes a fixing seat, a pushing rod arranged in the fixing seat and extending from the lower end, and a handle arranged on the fixing seat to control the extension of the pushing rod. The pushing rod is connected to the clamping mold so that it is pressed down under the guidance of the balancing component to clamp the test piece with the base.

3. A portable locking mechanism according to claim 1, characterized in that: The transmission component includes a sliding seat, a sliding block, a screw rod and a crank, the crank is transmission connected to the screw rod, the sliding seat is provided with a slide rail so that the sliding block can move up and down along the slide rail, the sliding block is transmission connected to the screw rod, and the sliding block is fixedly connected to the clamping component.

4. A portable locking mechanism according to claim 3, characterized in that: A locking piece is provided on the crank to lock the rotation of the crank.

5. A portable locking mechanism according to claim 1, characterized in that: The balancing component comprises a balancing plate and guide posts arranged on both sides of the balancing plate, guide sleeves are arranged on both sides of the balancing plate and sleeved on the guide posts, and the pressing mold is arranged below the balancing plate.

6. A portable locking mechanism according to claim 1, characterized in that: The top of the base is provided with a protruding nozzle connected to the three-way oil port of the four-way valve, and the sides of the base are provided with air inlets respectively connected to the protruding nozzles, and the air inlets are connected to external detection equipment.

7. A portable locking mechanism according to claim 1, characterized in that: The base is assembled on the bottom plate through a positioning mechanism, a positioning groove is arranged in the middle of the bottom plate, and a positioning protrusion is arranged at the bottom of the base corresponding to the positioning groove.

8. A portable locking mechanism according to claim 7, characterized in that: It also includes a positioning and fixing structure, which includes a pressing groove arranged on one side of the positioning groove, a convex strip arranged on the side of the positioning protrusion corresponding to the pressing groove, and a limit block. After the positioning protrusion is placed in the positioning groove, it translates so that the convex strip is inserted into the pressing groove. The limit block is placed in the positioning groove and is located on the side away from the pressing groove or the convex strip to limit the convex strip from retreating from the pressing groove.

9. A portable locking mechanism according to claim 8, characterized in that: The width of the limiting block is smaller than the width of the positioning groove so that after the limiting block is placed in the positioning groove, there is space for disassembling or picking up the limiting block.

10. A four-way valve life detection device, characterized in that: It comprises a portable locking mechanism as described in any one of claims 1-9.

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