Quick locking and unlocking clamp structure and paint spraying jig

Abstract

The utility model discloses a quick locking and unlocking clamp structure and a paint spraying jig, the clamp structure comprises an upper cover, a lower cover arranged opposite to the upper cover, and a first buckle structure, a second buckle structure, a third buckle structure and a fourth buckle structure used for connecting the upper cover and the lower cover, and a product mounting position is arranged between the upper cover and the lower cover; a first unlocking handle of the first buckle structure and a second unlocking handle of the second buckle structure are both connected with the upper cover and protrude out of the upper cover upwards, and the unlocking moving directions of the first unlocking handle and the second unlocking handle are opposite. A third unlocking handle of the third buckle structure and a fourth unlocking handle of the fourth buckle structure are both connected with the lower cover and protrude downwards out of the lower cover, and the unlocking moving directions of the third unlocking handle and the fourth unlocking handle are opposite. Therefore, the upper cover and the lower cover can be prevented from loosening, the constraining force on parts is increased, and quick unlocking can be achieved, so that the upper cover and the lower cover can be quickly opened.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a clamping structure for quick locking and unlocking, as well as a painting fixture. Background Technology

[0002] A typical mouse includes a main body, at least one switch, and at least one button corresponding to the switch. The button is usually elongated and consists of an operating end and a contact rod connected to each other. The button is attached to the main body, with the operating end protruding from the surface for the user to press. The end of the contact rod furthest from the operating end hangs above the corresponding switch. The user can press the operating end to activate the switch, thus controlling the mouse. However, for a more aesthetically pleasing mouse, the surface of the operating end usually needs to be painted. During painting, a paint jig is required to hold the button in place.

[0003] like Figures 1-3 As shown, the existing spray painting fixture (spray painting jig) includes an upper cover 1 and a lower cover 2. The upper cover 1 and lower cover 2 are typically connected by two snap-fit ​​structures 3, located in the middle of the spray painting fixture. There are mounting positions 4 for installing a button 5 between the upper cover 1 and lower cover 2. The two mounting positions 4 are located on both sides of the spray painting fixture. The abutment rod of the button 5 is installed within the mounting position 4, and the operating end of the button 5 protrudes from the side of the spray painting fixture for easy painting. Although this type of spray painting fixture is relatively easy to unlock, the constraint force (clamping force) on the part (button 5) is insufficient, and the sides of the upper cover 1 and lower cover 2 may warp upwards. To increase the connection strength between the upper cover 1 and lower cover 2, four or more snap-fit ​​structures 3 can be set, providing sufficient constraint force, but making unlocking difficult and reducing painting efficiency.

[0004] Therefore, there is an urgent need for a new fixture structure that can both satisfy the all-round constraint of parts and quickly unlock them to improve production efficiency. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a fast locking and unlocking fixture structure and a painting jig, so as to solve the problems of insufficient constraint force on parts and cumbersome unlocking of the existing painting fixture.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] This utility model provides a clamp structure for quick locking and unlocking, including an upper cover, a lower cover disposed opposite to the upper cover, and a first snap-fit ​​structure, a second snap-fit ​​structure, a third snap-fit ​​structure, and a fourth snap-fit ​​structure for connecting the upper cover and the lower cover, wherein a product mounting position is provided between the upper cover and the lower cover;

[0008] The first latch structure has a first unlocking handle for unlocking the first latch structure; the second latch structure has a second unlocking handle for unlocking the second latch structure; the third latch structure has a third unlocking handle for unlocking the third latch structure; and the fourth latch structure has a fourth unlocking handle for unlocking the fourth latch structure. Both the first and second unlocking handles are connected to the upper cover and protrude upwards from the upper cover, with their unlocking movement directions facing each other. Both the third and fourth unlocking handles are connected to the lower cover and protrude downwards from the lower cover, with their unlocking movement directions facing each other.

[0009] Furthermore, the first and second snap-fit ​​structures are located in the middle region of the clamping structure, while the third and fourth snap-fit ​​structures are located at the edges of the clamping structure.

[0010] Furthermore, the area between the first and third snap-fit ​​structures, as well as the area between the second and fourth snap-fit ​​structures, are provided with product mounting positions.

[0011] Furthermore, the lower cover is provided with a receiving groove for accommodating the first snap-fit ​​structure and the second snap-fit ​​structure.

[0012] Furthermore, the first buckle structure includes a first male buckle and a first female buckle that cooperate with each other, and the second buckle structure includes a second male buckle and a second female buckle that cooperate with each other. The first male buckle is installed on the first unlocking handle, the second male buckle is installed on the second unlocking handle, and the first female buckle and the second female buckle are both installed on the lower cover.

[0013] Furthermore, one end of the first unlocking handle has a first connection point, and one end of the first unlocking handle is connected to the upper cover through the first connection point. The first male buckle is located in the middle area of ​​the first unlocking handle.

[0014] One end of the second unlocking handle has a second connection point, and one end of the second unlocking handle is connected to the upper cover through the second connection point. The second male buckle is located in the middle area of ​​the second unlocking handle.

[0015] Furthermore, the third buckle structure includes a third male buckle and a third female buckle that cooperate with each other, and the fourth buckle structure includes a fourth male buckle and a fourth female buckle that cooperate with each other. The third male buckle is installed on the third unlocking handle, the fourth male buckle is installed on the fourth unlocking handle, and the third female buckle and the fourth female buckle are both installed on the top cover.

[0016] Furthermore, the middle area of ​​the third unlocking handle has a third connection point, the third unlocking handle is connected to the lower cover through the third connection point, and the third male buckle is located at the end of the third unlocking handle near the upper cover;

[0017] The fourth unlocking handle has a fourth connection point in the middle area, and the fourth unlocking handle is connected to the lower cover through the fourth connection point. The fourth male buckle is located at the end of the fourth unlocking handle near the upper cover.

[0018] This application also provides a paint spraying fixture, including the quick-locking and unlocking clamp structure as described above.

[0019] The beneficial effects of this utility model are as follows: By setting a first, second, third, and fourth latching structure in the clamping structure, the connection strength between the upper and lower covers can be increased, preventing loosening and increasing the constraint force between the upper and lower covers on the parts; moreover, by connecting the first unlocking handle of the first latching structure and the second unlocking handle of the second latching structure to the upper cover and protruding upwards from the upper cover, with the unlocking movement directions of the first and second unlocking handles facing each other, and connecting the third unlocking handle of the third latching structure and the fourth unlocking handle of the fourth latching structure to the lower cover and protruding downwards from the lower cover, with the unlocking movement directions of the third and fourth unlocking handles facing each other, with this design, one hand can hold the two first and second unlocking handles, and the other hand can hold the third and fourth unlocking handles, thus enabling quick unlocking, allowing the upper and lower covers to open quickly and facilitating the rapid removal of the product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a painting fixture in the prior art.

[0021] Figure 2 This is a schematic diagram of the longitudinal section structure of a painting fixture in the prior art.

[0022] Figure 3 This is a schematic diagram of the disassembled structure of a painting fixture in the prior art.

[0023] Figure 4 This is a schematic diagram of the spray painting fixture in this utility model.

[0024] Figure 5 This is a schematic diagram of the longitudinal section structure of the paint spraying fixture in this utility model when locked.

[0025] Figure 6 This is a schematic diagram of the longitudinal section structure of the paint spraying fixture in this utility model when it is unlocked.

[0026] Figure 7 This is one of the disassembled structural diagrams of the spray painting fixture in this utility model.

[0027] Figure 8 This is one of the disassembled structural diagrams of the spray painting fixture in this utility model. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation methods, structures, features, and effects of the quick-locking and unlocking clamp structure and painting fixture proposed according to this utility model:

[0029] Figure 4 This is a schematic diagram of the spray painting fixture in this utility model. Figure 5 This is a schematic diagram of the longitudinal section structure of the paint spraying fixture in this utility model when locked. Figure 6 This is a schematic diagram of the longitudinal section structure of the paint spraying fixture in this utility model when it is unlocked. Figure 7 This is one of the disassembled structural diagrams of the spray painting fixture in this utility model. Figure 8 This is one of the disassembled structural diagrams of the spray painting fixture in this utility model.

[0030] like Figures 4 to 8 As shown, the present invention provides a quick locking and unlocking clamp structure, including an upper cover 10, a lower cover 20 disposed opposite to the upper cover 10, and a first snap-fit ​​structure 31, a second snap-fit ​​structure 32, a third snap-fit ​​structure 33 and a fourth snap-fit ​​structure 34 for connecting the upper cover 10 and the lower cover 20, and a product mounting position 101 between the upper cover 10 and the lower cover 20.

[0031] The first latching structure 31 has a first unlocking handle 311 for unlocking the first latching structure 31, that is, the first latching structure 31 is unlocked by pushing the first unlocking handle 311 in the unlocking movement direction; the second latching structure 32 has a second unlocking handle 321 for unlocking the second latching structure 32, that is, the second latching structure 32 is unlocked by pushing the second unlocking handle 321 in the unlocking movement direction; the third latching structure 33 has a third unlocking handle 331 for unlocking the third latching structure 33, that is, the third latching structure 33 is unlocked by pushing the third unlocking handle 331 in the unlocking movement direction; the fourth latching structure 34 has a fourth unlocking handle 341 for unlocking the fourth latching structure 34, that is, the fourth latching structure 34 is unlocked by pushing the fourth unlocking handle 341 in the unlocking movement direction. The first unlocking handle 311 and the second unlocking handle 321 are both connected to the upper cover 10 and protrude upwards from the upper cover 10. The unlocking movement directions of the first unlocking handle 311 and the second unlocking handle 321 are set opposite to each other, so that pinching the first unlocking handle 311 and the second unlocking handle 321 can unlock the first latching structure 31 and the second latching structure 32 simultaneously. After unlocking, pulling the first unlocking handle 311 and the second unlocking handle 321 upwards can move the upper cover 10 upwards. The third unlocking handle 331 and the fourth unlocking handle 341 are both connected to the lower cover 20 and protrude downwards from the lower cover 20. The unlocking movement directions of the third unlocking handle 331 and the fourth unlocking handle 341 are set opposite to each other, so that pinching the third unlocking handle 331 and the fourth unlocking handle 341 can unlock the third latching structure 33 and the fourth latching structure 34 simultaneously. After unlocking, pulling the third unlocking handle 331 and the fourth unlocking handle 341 downwards can move the lower cover 20 downwards. In this context, the downward direction is the direction from the upper cover 10 to the lower cover 20, and the upward direction is the direction from the lower cover 20 to the upper cover 10.

[0032] In this embodiment, the first snap-fit ​​structure 31 and the second snap-fit ​​structure 32 are located in the middle region of the clamping structure, while the third snap-fit ​​structure 33 and the fourth snap-fit ​​structure 34 are located at the edge of the clamping structure. This ensures a strong connection between the upper cover 10 and the lower cover 20 from the middle to the edge.

[0033] Furthermore, product mounting positions 101 are provided in the areas between the first snap-fit ​​structure 31 and the third snap-fit ​​structure 33, and in the areas between the second snap-fit ​​structure 32 and the fourth snap-fit ​​structure 34. That is, in this embodiment, each clamping structure has two product mounting positions 101, one of which is located between the first snap-fit ​​structure 31 and the third snap-fit ​​structure 33, and the other is located between the second snap-fit ​​structure 32 and the fourth snap-fit ​​structure 34, so that the clamping structure has a strong restraining force on the product 200 in both product mounting positions 101.

[0034] Furthermore, the lower cover 20 is provided with a receiving groove 201, which is used to accommodate the first snap-fit ​​structure 31 and the second snap-fit ​​structure 32. When the upper cover 10 and the lower cover 20 are fastened together, the first snap-fit ​​structure 31 and the second snap-fit ​​structure 32 can be hidden in the receiving groove 201, thereby making the clamp structure more compact.

[0035] Furthermore, the first latching structure 31 and the second latching structure 32 are located on the same straight line, and the third latching structure 33 and the fourth latching structure 34 are located on the same straight line. In this embodiment, the first latching structure 31, the second latching structure 32, the third latching structure 33, and the fourth latching structure 34 are all located on the same straight line, thereby ensuring that the unlocking movement directions of the first unlocking handle 311, the second unlocking handle 321, the third unlocking handle 331, and the fourth unlocking handle 341 are on the same straight line, facilitating unlocking. For example, Figure 5 and Figure 6 For reference, the unlocking movement direction of the first unlocking handle 311 is to the right, the unlocking movement direction of the second unlocking handle 321 is to the left, the unlocking movement direction of the third unlocking handle 331 is to the right, and the unlocking movement direction of the fourth unlocking handle 341 is to the left. Of course, in other embodiments, the line connecting the first latching structure 31 and the second latching structure 32 and the line connecting the third latching structure 33 and the fourth latching structure 34 can also be at a certain angle to each other. For example, the unlocking movement direction of the first unlocking handle 311 is to the right, and the unlocking movement direction of the second unlocking handle 321 is to the left; while the unlocking movement direction of the third unlocking handle 331 can also be forward, and the unlocking movement direction of the fourth unlocking handle 341 can be backward.

[0036] like Figures 5-8As shown, the first latching structure 31 includes a first male latch 312 and a first female latch 313 that cooperate with each other. The second latching structure 32 includes a second male latch 322 and a second female latch 323 that cooperate with each other. The first male latch 312 is installed on the first unlocking handle 311, the second male latch 322 is installed on the second unlocking handle 321, and both the first female latch 313 and the second female latch 323 are installed on the lower cover 20. The first unlocking handle 311 has a first connection point 314 at one end, and one end of the first unlocking handle 311 is connected to the upper cover 10 through the first connection point 314. The first male latch 312 is located in the middle area of ​​the first unlocking handle 311. The second unlocking handle 321 has a second connection point 324 at one end, and one end of the second unlocking handle 321 is connected to the upper cover 10 through the second connection point 324. The second male latch 322 is located in the middle area of ​​the second unlocking handle 321. When the first unlocking handle 311 moves to the right, it can move the first male buckle 312 to the right, thereby unlocking the first male buckle 312 and the first female buckle 313; when the second unlocking handle 321 moves to the left, it can move the second male buckle 322 to the left, thereby unlocking the second male buckle 322 and the second female buckle 323.

[0037] Furthermore, the third latching structure 33 includes a third male latch 332 and a third female latch 333 that cooperate with each other, and the fourth latching structure 34 includes a fourth male latch 342 and a fourth female latch 343 that cooperate with each other. The third male latch 332 is installed on the third unlocking handle 331, the fourth male latch 342 is installed on the fourth unlocking handle 341, and both the third female latch 333 and the fourth female latch 343 are installed on the upper cover 10. The third unlocking handle 331 has a third connection point 334 in its middle area, through which it is connected to the lower cover 20. The third male latch 332 is located at the end of the third unlocking handle 331 near the upper cover 10. The fourth unlocking handle 341 has a fourth connection point 344 in its middle area, through which it is connected to the lower cover 20. The fourth male latch 342 is located at the end of the fourth unlocking handle 341 near the upper cover 10. That is, the third unlocking handle 331 and the fourth unlocking handle 341 are lever structures. When the end of the third unlocking handle 331 away from the third male buckle 332 moves to the right, it can move the third male buckle 332 to the left, thereby unlocking the third male buckle 332 and the third female buckle 333. When the end of the fourth unlocking handle 341 away from the fourth male buckle 342 moves to the left, it can move the fourth male buckle 342 to the left, thereby unlocking the fourth male buckle 342 and the fourth female buckle 343.

[0038] This application also provides a painting fixture, including a quick-locking and unlocking clamping structure as described above. The product mounting position 101 of the clamping structure is used to mount a mouse button (product 200). The mouse button has an operating end 210 and an abutment rod 220. The abutment rod 220 is clamped between the upper cover 10 and the lower cover 20. The operating end 210 protrudes from the side of the clamping structure to facilitate painting of the surface of the operating end 210. Optionally, the upper cover 10 has a positioning post 11, the lower cover 20 has a positioning hole 202 that mates with the positioning post 11, and the abutment rod 220 has a mounting hole. When the upper cover 10 and the lower cover 20 are closed together, one end of the positioning post 11 passes through the mounting hole on the abutment rod 220 and inserts into the positioning hole 202 on the lower cover 20, thereby positioning the upper cover 10 and the lower cover 20 together and preventing the product 200 from shaking within the product mounting position 101. Of course, in other embodiments, product 200 can also be other parts that need to be painted, and is not limited to mouse buttons.

[0039] The design of the fixture structure and the specific steps for painting are as follows:

[0040] Step 1: Select the product 200 to be painted (mouse button). Based on the shape and size of the product 200, determine the design of the snap-fit ​​structure (first snap-fit ​​structure 31, second snap-fit ​​structure 32, third snap-fit ​​structure 33, and fourth snap-fit ​​structure 34). The design of the snap-fit ​​structure can be adjusted according to the specific shape and size of the product 200 to ensure stable fixation of the product 200. In this embodiment, a rectangular product 200 is selected, therefore four snap-fit ​​structures 200 are designed, namely the first snap-fit ​​structure 31, the second snap-fit ​​structure 32, the third snap-fit ​​structure 33, and the fourth snap-fit ​​structure 34.

[0041] Step Two: Design the snap-fit ​​structure. The first snap-fit ​​structure 31 and the second snap-fit ​​structure 32 are positioned in the middle area of ​​the clamping structure, while the third snap-fit ​​structure 33 and the fourth snap-fit ​​structure 34 are positioned at the edges of the clamping structure. Product mounting positions 101 are provided in the areas between the first snap-fit ​​structure 31 and the third snap-fit ​​structure 33, and in the areas between the second snap-fit ​​structure 32 and the fourth snap-fit ​​structure 34. Ensure that the snap-fit ​​structure is in close contact with the edge of the product 200 to achieve stable fixation of the product 200.

[0042] Step 3: Select the unlocking handle. Based on the design of the latch structure, select the appropriate unlocking handle. In this embodiment, four unlocking handles were selected: the first unlocking handle 311, the second unlocking handle 321, the third unlocking handle 331, and the fourth unlocking handle 341.

[0043] Step 4: Design the unlocking handles. Connect both the first unlocking handle 311 and the second unlocking handle 321 to the upper cover 10 and allow them to protrude upwards from the upper cover 10. The unlocking movement directions of the first unlocking handle 311 and the second unlocking handle 321 are opposite to each other. Connect both the third unlocking handle 331 and the fourth unlocking handle 341 to the lower cover 20 and allow them to protrude downwards from the lower cover 20. The unlocking movement directions of the third unlocking handle 331 and the fourth unlocking handle 341 are also opposite to each other. Ensure that the unlocking handles are in tight contact with the latching structure so that the operator can unlock the device with minimal force.

[0044] Step 5: Apply paint. Place the product to be painted into the product mounting position 101 of the clamping structure. Multiple snap-fit ​​mechanisms work together to stably secure the product 200. Then, perform the painting operation, ensuring the accuracy and uniformity of the paint application.

[0045] Step Six: Unlock and Remove the Product. After painting, pull or push the first unlocking handle 311 and the second unlocking handle 321 to unlock the first latching structure 31 and the second latching structure 32; then pull or push the third unlocking handle 331 and the fourth unlocking handle 341 to unlock the third latching structure 33 and the fourth latching structure 34, finally removing the painted product 200. By setting four latching structures, uniform and sufficient fixation and rapid unlocking of the product to be painted are achieved, improving production efficiency and painting accuracy. At the same time, the third unlocking handle 331 and the fourth unlocking handle 341 adopt a lever-type unlocking method, which enables the third latching structure 33 and the fourth latching structure 34 to achieve a more stable unlocking effect, thereby improving the stability of the painting fixture.

[0046] In this document, the directional terms such as up, down, left, right, front, and back are defined according to the position of the structures in the accompanying drawings and the relative positions of the structures, and are only used for clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application. It should also be understood that the terms "first" and "second," etc., used herein are only used for distinction in name and are not used to limit the number or order.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content without departing from the scope of the technical solution of the present utility model. These are equivalent embodiments with equivalent changes. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick locking and unlocking clamp structure, characterized by, The utility model relates to a product packaging box, including upper cover (10), with the upper cover (10) opposite arrangement lower cover (20) and for connecting the first buckle structure (31) of upper cover (10) and lower cover (20), second buckle structure (32), third buckle structure (33) and fourth buckle structure (34), upper cover (10) and lower cover (20) between there is product installation site (101); The first buckle structure (31) has a first unlocking handle (311) for unlocking the first buckle structure (31), the second buckle structure (32) has a second unlocking handle (321) for unlocking the second buckle structure (32), the third buckle structure (33) has a third unlocking handle (331) for unlocking the third buckle structure (33), and the fourth buckle structure (34) has a fourth unlocking handle (341) for unlocking the fourth buckle structure (34), the first unlocking handle (311) and the second unlocking handle (321) are connected with the upper cover (10) and protrude upward from the upper cover (10), and the unlocking movement directions of the first unlocking handle (311) and the second unlocking handle (321) are oppositely arranged, the third unlocking handle (331) and the fourth unlocking handle (341) are connected with the lower cover (20) and protrude downward from the lower cover (20), and the unlocking movement directions of the third unlocking handle (331) and the fourth unlocking handle (341) are oppositely arranged.

2. The quick locking and unlocking clamp structure according to claim 1, wherein, The first buckle structure (31) and the second buckle structure (32) are located in the middle region of the clamp structure, and the third buckle structure (33) and the fourth buckle structure (34) are located at the edges of the clamp structure.

3. The quick locking and unlocking clamp structure according to claim 2, wherein, The regions between the first buckle structure (31) and the third buckle structure (33) and the regions between the second buckle structure (32) and the fourth buckle structure (34) are provided with the product installation site (101).

4. The quick lock and unlock clamp structure according to claim 2, wherein, The lower cover (20) is provided with a containing groove (201) for containing the first buckle structure (31) and the second buckle structure (32).

5. The quick locking and unlocking clamp structure according to any one of claims 1-4, characterized in that, The first buckle structure (31) includes a first male buckle (312) and a first female buckle (313) that cooperate with each other, the second buckle structure (32) includes a second male buckle (322) and a second female buckle (323) that cooperate with each other, the first male buckle (312) is installed on the first unlocking handle (311), the second male buckle (322) is installed on the second unlocking handle (321), and the first female buckle (313) and the second female buckle (323) are installed on the lower cover (20).

6. The quick locking and unlocking clamp structure according to claim 5, wherein, One end of the first unlocking handle (311) has a first connecting point (314), one end of the first unlocking handle (311) is connected with the upper cover (10) through the first connecting point (314), and the first male buckle (312) is located in the middle region of the first unlocking handle (311); One end of the second unlocking handle (321) has a second connecting point (324), and the other end of the second unlocking handle (321) is connected with the upper cover (10) through the second connecting point (324), and the second male buckle (322) is located in the middle region of the second unlocking handle (321).

7. The quick locking and unlocking clamp structure according to any one of claims 1-4, wherein, The third buckle structure (33) comprises a third male buckle (332) and a third female buckle (333) matched with each other, and the fourth buckle structure (34) comprises a fourth male buckle (342) and a fourth female buckle (343) matched with each other, the third male buckle (332) is installed on the third unlocking handle (331), the fourth male buckle (342) is installed on the fourth unlocking handle (341), and the third female buckle (333) and the fourth female buckle (343) are both installed on the upper cover (10).

8. The quick locking and unlocking clamp structure according to claim 7, wherein, The middle region of the third unlocking handle (331) has a third connecting point (334), and the third unlocking handle (331) is connected with the lower cover (20) through the third connecting point (334), and the third male buckle (332) is located at the end of the third unlocking handle (331) close to the upper cover (10); The middle region of the fourth unlocking handle (341) has a fourth connecting point (344), and the fourth unlocking handle (341) is connected with the lower cover (20) through the fourth connecting point (344), and the fourth male buckle (342) is located at the end of the fourth unlocking handle (341) close to the upper cover (10).

9. A paint spray fixture, characterized by, A clamp structure comprising a quick locking and unlocking device according to any one of claims 1-8.

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