Push rod thrust test fixing device

Abstract

The utility model discloses a push rod thrust test fixing device, which comprises a fixing platform, a thrust power device, a cylinder type fixing unit and a square cylinder type fixing unit, the cylinder type fixing unit and the square cylinder type fixing unit are arranged on the fixing platform, a cylinder type push rod is fixed on the cylinder type fixing unit, and the cylinder type push rod is fixed on the square cylinder type fixing unit. The square cylinder type push rod is fixed on the through square cylinder type fixing unit, the stress ends of the cylindrical push rod and the square cylinder type push rod are connected with the thrust power device, and the thrust of the test push rod is tested through connection of the thrust power device. According to the utility model, the problem of difficulty in fixation in the thrust test of the cylindrical push rod and the square-cylinder push rod is simultaneously solved through one device, the thrust test fixation of the cylindrical push rod and the square-cylinder push rod product can be carried out repeatedly, consistently, scientifically and efficiently, and a power lead-out wire at one end or a test end of the push rod product is prevented from being stressed; and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of push rod product detection, in particular to a chain-type push rod and a screw-type push rod thrust test fixing device. Background Art

[0002] The national standard "Fire linkage controller" stipulates the standard for thrust test. The thrust test is to test whether the push rod test sample is reliably fixed in the prescribed installation method, and then push out the claimed stroke with the prescribed thrust load, and then retract it after reaching the prescribed stroke.

[0003] The push rod test sample has a cylindrical shape, a square cylinder shape, etc. The test sample's force-bearing surface required in the test should have reliable support, be able to withstand the specified thrust, and remain firmly installed and fixed; Figure 8 As shown in the figure, one end of the cylindrical push rod sample is a screw and the other end has a power lead. Due to the axial thrust during the experiment, the rear end, that is, the power lead end, needs to be fixed; Fig. 9 The figure shows a schematic diagram of the square cylinder push rod structure. The power lead of the square cylinder push rod sample is led out from the side, and force needs to be applied to the chain on the side. During the experiment, the test sample needs to be tightened and clamped, and the power line cannot be damaged. The current existing thrust test device is fixed by manual fixation or one-to-one screw fixation, which is not universal, and the operation method is complicated, and the consistency and repeatability are poor. Utility Model Content

[0004] In view of the above-mentioned shortcomings and deficiencies, the utility model provides a push rod thrust test fixing device, which can perform thrust test fixation of square cylinder and cylindrical push rod products in a repeatable, consistent, scientific and efficient manner.

[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0006] A push rod thrust test fixture, characterized in that it includes a fixed platform, a thrust power device, a cylindrical fixing unit and a square cylindrical fixing unit, wherein the cylindrical fixing unit and the square cylindrical fixing unit are arranged on the fixed platform, the cylindrical push rod is fixed on the cylindrical fixing unit, the square cylindrical push rod is fixed on the square cylindrical fixing unit, the force-bearing ends of the cylindrical push rod and the square cylindrical push rod are connected to the thrust power device, and the thrust of the test push rod is connected to the thrust power device.

[0007] The cylindrical fixing unit includes a guide rail, a cylindrical push rod thrust seat and a centering chuck. The guide rail is horizontally arranged on a fixed platform. The cylindrical push rod thrust seat is slidably connected to the guide rail. The horizontal and vertical positions of the cylindrical push rod thrust seat on the guide rail are adjusted by adjusting screws. The centering chuck is arranged on one side of the guide rail. The cylindrical push rod is fixed by manually rotating the centering chuck.

[0008] The centering chuck is provided with a handle, a chuck and a clamping claw. By manually rotating the handle, the clamping claws are simultaneously moved inward on the chuck.

[0009] The cylindrical push rod thrust seat is provided with positioning sleeves of multiple sizes, which are adapted to cylindrical push rods of multiple diameter sizes, so that the power lead wire of the cylindrical push rod is retained outside without force.

[0010] The square cylinder type fixing unit includes a square cylinder type push rod thrust seat, a positioning plate and an upper pressure block. The square cylinder type push rod thrust seat is slidably connected to the fixed platform, and the horizontal position of the square cylinder type push rod thrust seat on the fixed platform is adjusted by an adjusting screw. The positioning plate is arranged on one side of the cylinder type push rod thrust seat, and an upper pressure block is arranged on the positioning plate by a locking screw. The height of the upper pressure block is set by adjusting the locking screw.

[0011] The fixing platform is also provided with a detachable adjusting gasket, and the fixing position of the square tube type push rod is adjusted through the square tube type push rod thrust seat, the upper pressing block and the adjusting gasket.

[0012] An adjusting knob for adjusting the height of the fixed platform is arranged below the fixed platform.

[0013] The force-bearing end connecting screw of the cylindrical push rod and the force-bearing end connecting chain of the square cylindrical push rod are respectively connected to the thrust power device through positioning pins, and the thrust power device is started to make the push rod bear force.

[0014] The utility model has the following beneficial effects and advantages:

[0015] The utility model solves the problem of difficult fixation in thrust tests of cylindrical push rods and square cylindrical push rods through a device, and can perform thrust test fixation of cylindrical push rods and square cylindrical push rod products in a repeatable, consistent, scientific and efficient manner, and avoids stress on the power lead wire at one end or the measuring end of the push rod product, thereby extending the service life of the product; an adjustment knob is provided at the lower end of the fixing platform for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 This is a schematic diagram of the cylindrical fixing unit structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the cylindrical push rod thrust seat of the utility model;

[0020] Figure 5This is a schematic diagram of the positioning sleeve structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the square tube type fixing unit of the utility model;

[0022] Figure 7 This is a schematic diagram of the connection structure of the positioning plate and the upper pressing block of the utility model;

[0023] Figure 8 It is a schematic diagram of the cylindrical push rod structure;

[0024] Fig. 9 It is a schematic diagram of the square tube push rod structure.

[0025] Among them, 1. fixed platform, 2. guide rail, 3. cylindrical push rod thrust seat, 4. centering chuck, 401. handle, 402 chuck, 403. claw, 5. positioning sleeve, 6. square cylindrical push rod thrust seat, 7. positioning plate, 8. upper pressure block, 9. locking screw, 10. adjusting gasket, 11. adjusting knob, 12. thrust power device, 13. cylindrical push rod, 1301, connecting screw, 14. square cylindrical push rod, 1401, connecting chain. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings of the specification. Figure 1~2 As shown, the utility model is a push rod thrust test fixture, characterized in that it includes: a fixed platform 1, a thrust power device 12, a cylindrical fixing unit and a square cylindrical fixing unit, the cylindrical fixing unit and the square cylindrical fixing unit are arranged on the fixed platform 1, the cylindrical push rod 13 is fixed on the cylindrical fixing unit, the square cylindrical push rod 14 is fixed on the square cylindrical fixing unit, the force-bearing ends of the cylindrical push rod 13 and the square cylindrical push rod 14 are connected to the thrust power device 12, and the thrust of the test push rod is connected to the thrust power device 12.

[0027] Furthermore, if Figure 3 As shown, the cylindrical fixing unit includes a guide rail 2, a cylindrical push rod thrust seat 3 and a centering chuck 4. The guide rail 2 is horizontally arranged on the fixed platform 1. The cylindrical push rod thrust seat 3 is slidably connected to the guide rail 1 and is fixed to the guide rail by adjusting screws or adjusting the horizontal and vertical positions of the cylindrical push rod thrust seat 3 on the guide rail 1. The centering chuck 4 is arranged on one side of the guide rail 1, and the cylindrical push rod 13 is fixed by manually rotating the centering chuck 4.

[0028] The centering chuck 4 is provided with a handle 401 , a chuck 402 and a clamping claw 403 . By manually rotating the handle 401 , the clamping claw 403 is simultaneously moved inward on the chuck 402 .

[0029] The cylindrical push rod thrust seat 3 (such as Figure 4 A plurality of sizes of positioning sleeves 5 (as shown) are provided on the Figure 5 As shown), a cylindrical push rod 13 of multiple diameter sizes is adapted so that the power lead wire of the cylindrical push rod 13 is left outside without force.

[0030] Furthermore, if Figure 6 As shown, the square cylinder type fixed unit includes a square cylinder type push rod thrust seat 6, a positioning plate 7 and an upper pressure block 8. The square cylinder type push rod thrust seat 6 is slidably connected to the fixed platform 1 and is fixedly connected to the fixed platform through an adjusting screw, and the horizontal position of the square cylinder type push rod thrust seat 6 on the fixed platform 1 can be adjusted. The positioning plate 7 is arranged on one side of the cylinder type push rod thrust seat 6. Figure 7 As shown, an upper pressing block 8 is provided on the positioning plate 7 via a locking screw 9 , and the height of the upper pressing block 8 on the positioning plate 7 is set by adjusting the locking screw 9 .

[0031] Furthermore, a detachable adjusting gasket 10 is also provided on the fixing platform 1 , and the fixing position of the square cylindrical push rod 14 is adjusted through the square cylindrical push rod thrust seat 6 , the upper pressing block 8 and the adjusting gasket 10 .

[0032] An adjusting knob 11 for adjusting the height of the fixed platform is provided below the fixed platform 1 .

[0033] The force-bearing end connecting screw 1301 of the cylindrical push rod 13 and the force-bearing end connecting chain 1401 of the square cylindrical push rod 14 are respectively connected to the thrust power device 12 through positioning pins, and the thrust power device is started to make the push rod bear force.

[0034] When the cylindrical push rod 13 is subjected to a thrust test, the cylindrical push rod 13 is inserted into the chuck 402 of the centering chuck 4, and the handle 401 is manually rotated to make the claws 403 move inward at the same time until the cylindrical push rod 13 is clamped. A positioning sleeve 5 of suitable size is selected and placed on the cylindrical push rod thrust seat 3 so that the power lead wire of the cylindrical push rod 13 passes through the positioning sleeve 5 and is retained outside. At the same time, the positioning sleeve 5 clamps the outer shell of the cylindrical push rod 13, and the force-bearing end connecting screw of the cylindrical push rod 13 is clamped together with the connection of the thrust power device 12 through the positioning pin. The adjusting screw under the cylindrical push rod thrust seat 3 is adjusted to keep the cylindrical push rod 13 horizontal, and the thrust power device 12 is started to start the thrust test on the cylindrical push rod 13.

[0035] When the square cylinder push rod 14 is subjected to a thrust test, the square cylinder push rod 14 is placed between the square cylinder push rod thrust seat 6 and the positioning plate 7, and an adjusting gasket 10 of a suitable height is selected to set the square cylinder push rod 14 at a suitable height. The position of the square cylinder push rod thrust seat 6 on the fixed platform 1 is adjusted, and the position of the upper pressure block 8 on the positioning plate is adjusted by the locking screw 9 to fix the position of the square cylinder push rod 14. The force-bearing end connecting screw 1401 of the square cylinder push rod 14 is clamped together with the connection of the thrust power device 12 through the positioning pin, and the thrust power device 12 is started to start the thrust test of the square cylinder push rod 14.

[0036] The utility model solves the problem of difficult fixation in thrust tests of cylindrical push rods and square cylindrical push rods through a device, and can perform thrust test fixation of cylindrical push rods and square cylindrical push rod products in a repeatable, consistent, scientific and efficient manner, and avoids stress on the power lead wire at one end or the measuring end of the push rod product, thereby extending the service life of the product.

Claims

1. A push rod thrust test fixture, characterized in that: It includes a fixed platform, a thrust power device, a cylindrical fixed unit and a square cylindrical fixed unit. The cylindrical fixed unit and the square cylindrical fixed unit are arranged on the fixed platform. The cylindrical push rod is fixed on the cylindrical fixed unit, and the square cylindrical push rod is fixed on the square cylindrical fixed unit. The force-bearing ends of the cylindrical push rod and the square cylindrical push rod are connected to the thrust power device, and the thrust of the test push rod is connected to the thrust power device for testing.

2. A push rod thrust test fixture according to claim 1, characterized in that: The cylindrical fixing unit includes a guide rail, a cylindrical push rod thrust seat and a centering chuck. The guide rail is horizontally arranged on a fixed platform. The cylindrical push rod thrust seat is slidably connected to the guide rail. The horizontal and vertical positions of the cylindrical push rod thrust seat on the guide rail are adjusted by adjusting screws. The centering chuck is arranged on one side of the guide rail. The cylindrical push rod is fixed by manually rotating the centering chuck.

3. A push rod thrust test fixture according to claim 2, characterized in that: The centering chuck is provided with a handle, a chuck and a clamping claw. By manually rotating the handle, the clamping claws are simultaneously moved inward on the chuck.

4. A push rod thrust test fixture according to claim 2, characterized in that: The cylindrical push rod thrust seat is provided with positioning sleeves of multiple sizes, which are adapted to cylindrical push rods of multiple diameter sizes, so that the power lead wire of the cylindrical push rod is retained outside without force.

5. A push rod thrust test fixture according to claim 1, characterized in that: The square cylinder type fixing unit includes a square cylinder type push rod thrust seat, a positioning plate and an upper pressure block. The square cylinder type push rod thrust seat is slidably connected to the fixed platform, and the horizontal position of the square cylinder type push rod thrust seat on the fixed platform is adjusted by an adjusting screw. The positioning plate is arranged on one side of the cylinder type push rod thrust seat, and an upper pressure block is arranged on the positioning plate by a locking screw. The height of the upper pressure block is set by adjusting the locking screw.

6. A push rod thrust test fixture according to claim 5, characterized in that: The fixing platform is also provided with a detachable adjusting gasket, and the fixing position of the square tube type push rod is adjusted through the square tube type push rod thrust seat, the upper pressing block and the adjusting gasket.

7. A push rod thrust test fixture according to claim 1, characterized in that: An adjusting knob for adjusting the height of the fixed platform is arranged below the fixed platform.

8. A push rod thrust test fixture according to claim 1, characterized in that: The force-bearing end connecting screw of the cylindrical push rod and the force-bearing end connecting chain of the square cylindrical push rod are respectively connected to the thrust power device through positioning pins, and the thrust power device is started to make the push rod bear force.

Images