Clamping device for pneumatic sample feeding shell

Abstract

The utility model belongs to the technical field of pneumatic sample sending, and particularly relates to a clamping device of a pneumatic sample sending shell. Comprising a pneumatic conveying belt, a sample conveying shell is placed on the pneumatic conveying belt, a cover body is arranged at the top end of the sample conveying shell, a cross-shaped clamping groove is formed in the top end of the cover body, supports are arranged on the two sides of the pneumatic conveying belt, SC air cylinders are fixed to the two supports, and the two SC air cylinders are connected with a pneumatic switch foot valve after being connected in parallel through an air pipe. Arc-shaped clamping jaws are welded to the output ends of the two SC air cylinders, an L-shaped support is welded to any one of the two arc-shaped clamping jaws, a key rod is connected to the L-shaped support in a penetrating mode, a handle is welded to the top end of the key rod, a cross-shaped key is welded to the bottom end of the key rod, and a spring is connected to the position, between the handle and the L-shaped support, of the key rod in a sleeving mode. The sample shell clamping device can clamp a sample shell, the operation that a sample shell cover body is tightened by a single person is achieved, and therefore manpower and operation time are saved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic sample delivery, in particular to a clamping device for a pneumatic sample delivery shell. Background Art

[0002] After sample preparation is completed, the pneumatic sample delivery system is used to send the sample to the laboratory. Due to the high pneumatic pressure, the cover of the sample delivery shell must be tightened, which requires two people to tighten the cover and place it on the pneumatic conveyor belt. Each shift requires about 80 samples to be delivered, and two people are required to cooperate each time, resulting in a waste of manpower. Summary of the invention

[0003] The utility model aims to provide a clamping device for pneumatically conveying sample shells to solve the problems existing in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a clamping device for pneumatic sample-feeding shells, comprising a pneumatic conveyor belt, on which sample-feeding shells are placed, a cover body is arranged at the top of the sample-feeding shells, a cross slot is opened at the top of the cover body, brackets are arranged on both sides of the pneumatic conveyor belt, SC cylinders are fixed on the two brackets, the two SC cylinders are connected in parallel through air pipes and are connected to a pneumatic switch foot valve, arc-shaped claws are welded at the output ends of the two SC cylinders, an L support is welded on any one of the two arc-shaped claws, a key rod is penetrated on the L support, a handle is welded on the top of the key rod, a cross key is welded on the bottom of the key rod, and a spring is sleeved on the key rod between the handle and the L support.

[0005] Furthermore, the movement paths of the two arc-shaped clamping claws are located at the same height and on the same straight line, so that the two arc-shaped clamping claws can clamp the sample delivery shell.

[0006] Furthermore, the height of the arc-shaped claw is 5 cm higher than the upper top surface of the pneumatic conveyor belt.

[0007] Furthermore, the arc-shaped clamping claw is in the shape of an arc, and the diameter of the clamping side of the arc-shaped clamping claw is the outer diameter of the sample delivery shell. After the two arc-shaped clamping claws clamp the sample delivery shell, a gap is left between the ends of the two arc-shaped clamping claws.

[0008] Furthermore, the L support is L-shaped, one end of the L support is welded to the arc-shaped claw, and the other end of the L support is located above the arc-shaped claw. After the two arc-shaped claws clamp the sample delivery shell, the key rod connected to the L support is located on the central axis of the sample delivery shell.

[0009] Furthermore, the cross slot is in a cross shape, and is located in the center of the top of the cover body. The shape of the cross key matches the shape of the cross slot, so that the cross key can be clamped in the cross slot to twist the cover body.

[0010] Furthermore, the SC cylinder is a standard double-acting cylinder.

[0011] The utility model has the following beneficial effects:

[0012] 1. The utility model can clamp the sample shell, and realize the operation of tightening the cover of the sample shell by one person, thereby saving manpower, saving operation time and improving work efficiency.

[0013] 2. The SC cylinder is controlled by the pneumatic switch foot valve to clamp the sample shell with the arc-shaped claws, and no two people are required to tighten the cover.

[0014] 3. While the arc-shaped claws are clamping the sample shells, the cross key is located above the cover body. Only one person needs to press down and turn the handle to complete the tightening of the cover body, thereby improving work efficiency, saving manpower, and saving operation time.

[0015] 4. After tightening the cover, loosen the handle and the cross key will automatically move up, further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the utility model from top view.

[0018] Figure 3 It is a schematic diagram of the top view of the cover body of the utility model.

[0019] Figure 4 The utility model is a schematic diagram of the structure of a cross key.

[0020] Among them: 1. Pneumatic conveyor belt; 2. Sample delivery shells; 3. Cover body; 4. Cross slot; 5. Bracket; 6. SC cylinder; 7. Pneumatic switch foot valve; 8. Arc claw; 9. L support; 10. Key rod; 11. Handle; 12. Cross key; 13. Spring; 14. Air pipe. DETAILED DESCRIPTION

[0021] The utility model will now be further described in detail with reference to the accompanying drawings.

[0022] like Figure 1-4As shown, a clamping device for a pneumatic sample-delivering shell 2 comprises a pneumatic conveyor belt 1, on which a sample-delivering shell 2 is placed, a cover body 3 is provided at the top of the sample-delivering shell 2, a cross slot 4 is provided at the top of the cover body 3, brackets 5 are provided on both sides of the pneumatic conveyor belt 1, SC cylinders 6 are fixed on the two brackets 5, the two SC cylinders 6 are connected in parallel through an air pipe 14 and are connected to a pneumatic switch foot valve 7, arc-shaped claws 8 are welded at the output ends of the two SC cylinders 6, an L support 9 is welded to any one of the two arc-shaped claws 8, a key rod 10 is penetrated through the L support 9, a handle 11 is welded to the top of the key rod 10, a cross key 12 is welded to the bottom of the key rod 10, and a spring 13 is sleeved on the key rod 10 between the handle 11 and the L support 9.

[0023] The pneumatic switch foot valve 7 and the SC cylinder 6 are prior art. The SC cylinder 6 can be moved by stepping on it. To control the synchronous movement of two SC cylinders 6 by a pneumatic switch foot valve 7, it is only necessary to connect two identical SC cylinders 6 in parallel through an air pipe 14 and then connect them to the pneumatic switch foot valve 7. This is a common connection method in the prior art. The parallel connection method is very simple. The air holes at the same position of the two identical SC cylinders 6 are respectively connected in parallel through a three-way connection, and then connected to the corresponding positions of the pneumatic switch foot valve 7 through the air pipe 14. There are many types of pneumatic switch foot valves 7, one of which is one-in and two-out. The parallel air pipe 14 is respectively connected to the two air outlets of the two pneumatic switch foot valves 7. If connected at random, there are two results. One is that the SC cylinders 6 extend at the same time when stepped on, and the SC cylinders 6 retract at the same time when released. The other is the opposite. If the second result occurs, the connection position is changed so that the SC cylinders 6 extend at the same time when stepped on, and retract at the same time when released. There is also a pneumatic switch foot valve 7 with a locking function, that is, stepping on it once will execute the extension action of the SC cylinder 6, and unlocking or stepping on it again will execute the retraction action of the SC cylinder 6. This pneumatic switch foot valve 7 is also suitable for the present utility model.

[0024] The movement paths of the two arc-shaped claws 8 are located at the same height and on the same straight line, so that the two arc-shaped claws 8 can clamp the sample delivery shell 2.

[0025] The height of the arc-shaped claw 8 is 5 cm higher than the upper top surface of the pneumatic conveyor belt 1 .

[0026] The arc-shaped clamping claw 8 is in the shape of an arc, and the diameter of the clamping side of the arc-shaped clamping claw 8 is the outer diameter of the sample delivery shell 2. After the two arc-shaped clamping claws 8 clamp the sample delivery shell 2, a gap is left between the ends of the two arc-shaped clamping claws 8. The purpose of this design is to make the two arc-shaped clamping claws 8 tightly hold the sample delivery shell 2 to prevent loose clamping.

[0027] The L support 9 is L-shaped, one end of the L support 9 is welded to the arc-shaped claw 8, and the other end of the L support 9 is located above the arc-shaped claw 8. After the two arc-shaped claws 8 clamp the sample delivery shell 2, the key rod 10 connected to the L support 9 is located on the central axis of the sample delivery shell 2.

[0028] The cross slot 4 is in a cross shape and is located at the center of the top of the cover 3 . The shape of the cross key 12 matches that of the cross slot 4 , so that the cross key 12 can be stuck in the cross slot 4 to twist the cover 3 .

[0029] SC cylinder 6 is a standard double-acting cylinder.

[0030] The working principle of the utility model is:

[0031] Before use, connect the air inlet end of the pneumatic switch foot valve 7 to the compressed air system of the workshop. It should be noted that the pneumatic switch foot valve 7 and the SC cylinder 6 are prior art. The SC cylinder 6 can be moved by stepping on it. To control the synchronous movement of two SC cylinders 6 by one pneumatic switch foot valve 7, it is only necessary to connect two identical SC cylinders 6 in parallel through the air pipe 14 and then connect the pneumatic switch foot valve 7. This is a common connection method in the prior art. The parallel method is very simple. The air holes at the same position of the two identical SC cylinders 6 are connected through The three-way valve is connected in parallel, and then connected to the corresponding positions of the pneumatic switch foot valve 7 through the air pipe 14. There are many types of pneumatic switch foot valves 7, one of which is one-in and two-out. The parallel air pipe 14 is connected to the two air outlets of the two pneumatic switch foot valves 7. If it is connected randomly, there are two results. One is that the SC cylinder 6 extends at the same time when it is stepped on, and the SC cylinder 6 retracts at the same time when it is released. The other is the opposite. If the second result occurs, the connection position is changed so that the SC cylinder 6 extends at the same time when it is stepped on, and retracts at the same time when it is released. There are also pneumatic switch foot valves 7 with a locking function, that is, stepping on it once will execute the SC cylinder 6 extension action, unlocking or stepping on it again will execute the SC cylinder 6 retraction action. This pneumatic switch foot valve 7 is also suitable for the utility model.

[0032] When using the pneumatic sample delivery system to deliver samples, the sample delivery shell 2 loaded with samples moves slowly on the pneumatic conveyor belt 1. When it moves between the two arc-shaped clamping claws, the operator steps on the pneumatic switch foot valve 7, and the two SC cylinders 6 extend at the same time, driving the arc-shaped clamping claws to clamp the sample delivery shell 2. At this time, one end of the L support 9 connected to the key rod 10 is located above the arc-shaped clamping claw 8. The handle 11 is held and pressed downward to insert the cross key 12 into the cross card slot 4. If the cross key 12 deviates from the cross card slot 4 at an angle, turn it appropriately. The key rod 10 is pressed until the cross key 12 is inserted into the cross slot 4. At this time, the handle 11 is turned to tighten the cover body 3 on the sample delivery shell 2. After the handle 11 is loosened, the key rod 10 moves up under the action of the spring 13, and the cross key 12 is pulled out from the cross slot 4. At this time, the pneumatic switch foot valve 7 is released or stepped on again or unlocked, and the two SC cylinders 6 retract at the same time. The sample delivery shell 2 falls on the pneumatic conveyor belt 1 and continues to move forward. The next sample delivery shell 2 is transported between the two arc-shaped clamps, and the above operation is repeated. It should be noted that when clamping the sample delivery shell 2, the sample delivery shell 2 can be manually lifted up to prevent the bottom of the sample delivery shell 2 from rubbing against the pneumatic conveyor belt 1.

[0033] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the scope of protection of the present invention.

[0034] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A clamping device for pneumatic sample delivery shells, comprising a pneumatic conveyor belt, on which a sample delivery shell is placed, and a cover body is provided on the top of the sample delivery shell, characterized in that: A cross slot is provided on the top of the cover body, and brackets are provided on both sides of the pneumatic conveyor belt. SC cylinders are fixed on the two brackets. The two SC cylinders are connected in parallel through air pipes and are connected to a pneumatic switch foot valve. Arc claws are welded on the output ends of the two SC cylinders, and an L support is welded on any one of the two arc claws. A key rod is connected to the L support, a handle is welded on the top of the key rod, a cross key is welded on the bottom of the key rod, and a spring is sleeved on the key rod between the handle and the L support.

2. The clamping device for pneumatically conveying sample shells according to claim 1 is characterized in that: The movement paths of the two arc-shaped clamping claws are located at the same height and on the same straight line, so that the two arc-shaped clamping claws can clamp the sample delivery shell.

3. The clamping device for pneumatically conveying sample shells according to claim 2 is characterized in that: The height of the arc-shaped claw is 5 cm higher than the upper top surface of the pneumatic conveyor belt.

4. The clamping device for pneumatically conveying sample shells according to claim 2 is characterized in that: The arc-shaped clamping claw is in the shape of an arc, and the diameter of the clamping side of the arc-shaped clamping claw is the outer diameter of the sample delivery shell. After the two arc-shaped clamping claws clamp the sample delivery shell, a gap is left between the ends of the two arc-shaped clamping claws.

5. The clamping device for pneumatically conveying sample shells according to claim 2, characterized in that: The L support is L-shaped, one end of the L support is welded to the arc-shaped claw, and the other end of the L support is located above the arc-shaped claw. After the two arc-shaped claws clamp the sample delivery shell, the key rod connected to the L support is located on the central axis of the sample delivery shell.

6. The clamping device for pneumatically conveying sample shells according to claim 1 is characterized in that: The cross slot is in the shape of a cross and is located in the center of the top of the cover body. The shape of the cross key matches the shape of the cross slot, so that the cross key is clamped in the cross slot to twist the cover body.

7. The clamping device for pneumatically conveying sample shells according to claim 1 is characterized in that: The SC cylinder is a standard double-acting cylinder.

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