Adjustable step-by-step fastener

Abstract

The utility model discloses an adjustable step-by-step fastener which comprises a clamping rod, a clamping head is connected outside the clamping rod in a sleeved mode, a connecting sleeve is fixedly installed at the bottom of the clamping head, a fixing block is fixedly installed at the rear position of the bottom of the clamping rod, a threaded rod is arranged below the clamping rod, the threaded rod is movably connected with the fixing block, and the threaded rod is in threaded connection with the connecting sleeve. Two sets of connecting rods are arranged below the clamping rod, sleeve rods penetrate through the rear positions of the tops of the two sets of connecting rods, buttons are arranged outside the sleeve rods, slotted holes matched with the buttons are formed outside the connecting rods, the tops of the sleeve rods are fixedly connected with the bottom of the clamping rod, and the two sets of sleeve rods and the connecting rods are symmetrically arranged. A circular groove is formed in the lower portion of the outer portion of the sleeve rod in a penetrating mode, the tail end of the button is inserted into the circular groove, and a spring is arranged in the circular groove. According to the adjustable step-by-step fastener, the clamping head and the clamping rod can be fixed more stably, meanwhile, the clamping head can be detached and replaced, and the adjustable step-by-step fastener is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening devices used in the construction industry, in particular to an adjustable step-by-step tightener. Background Art

[0002] Bubujin is a construction tool that is quick to use and can not only save working time and improve work efficiency, but also save a lot of wood. In construction, Bubujin is usually used to fix the formwork to ensure that the wall beam formwork can withstand the extrusion thrust of initial setting, final setting, temperature deformation, etc. of concrete without obvious loosening or deformation. Bubujin comes in various sizes and the size can be flexibly selected when using it.

[0003] However, the existing step-by-step tightener is usually used by manually hitting the clamp head with a hammer, so that the clamp head and the clamp rod cooperate to fix the template. This fixing method may result in an unstable fixation effect, and the conventional step-by-step tightener clamp head and the clamp rod are more troublesome to disassemble, which has a certain impact on the use of the step-by-step tightener. Therefore, an adjustable step-by-step tightener is proposed;

[0004] To this end, this case proposes an adjustable step-by-step tightening method to address the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide an adjustable step-by-step tightener, which can effectively solve the technical problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An adjustable step-by-step tightener includes a clamping rod, a clamping head is sleeved on the outside of the clamping rod, a connecting sleeve is fixedly installed on the bottom of the clamping head, a fixing block is fixedly installed at the rear position of the bottom of the clamping rod, a threaded rod is arranged under the clamping rod, the threaded rod and the fixing block are movably connected, and the threaded rod and the connecting sleeve are threadedly connected.

[0008] As a further solution of the utility model, two groups of connecting rods are arranged below the clamping rod, sleeve rods are arranged at the rear position of the top of the two groups of connecting rods, buttons are arranged on the outside of the sleeve rods, and slots matching the buttons are opened on the outside of the connecting rods.

[0009] As a further solution of the utility model, the top of the sleeve rod and the bottom of the clamping rod are fixedly connected, and the two sets of sleeve rods and the connecting rods are symmetrically arranged.

[0010] As a further solution of the utility model, a circular groove is provided at a lower position outside the sleeve rod, and the end of the button is inserted into the circular groove.

[0011] As a further solution of the utility model, a spring is arranged in the circular groove, one end of the spring is fixedly connected to the sleeve rod, and the other end of the spring is fixedly connected to the button.

[0012] As a further solution of the utility model, a sliding groove is opened at the front position of the bottom of the clamping rod, the clamping rod is connected to a slider through the sliding groove, the slider is sleeved on the outside of the threaded rod, and a limiting ring is threadedly connected to the front position of the outside of the threaded rod.

[0013] As a further solution of the utility model, a clamping block is fixedly installed at the front position of the top of the two groups of connecting rods, and a clamping groove matching the clamping block is opened through the bottom of the connecting rod.

[0014] The beneficial effects of the utility model are as follows:

[0015] By setting the threaded rod, the connecting sleeve and the clamping head, when the threaded rod is rotated, since the connecting sleeve and the threaded rod are threadedly connected, when the threaded rod is rotated, the connecting sleeve can drive the clamping head to move, so that the clamping head can cooperate with the clamping rod to fix the template, and the fixation can be more firm. When the clamping head needs to be removed, the threaded rod can be directly rotated, making this step-by-step tightening adjustment more convenient;

[0016] By setting two groups of connecting rods, the movement of the clamping head can be made more stable. The two groups of connecting rods are symmetrically arranged, and there is a certain gap between the two groups of connecting rods and the bottom of the clamping rod, so that the movement of the clamping head will not be affected. A clamping block is arranged at the front of the top of the connecting rod, and a clamping groove is provided at the bottom of the clamping rod. The clamping block is inserted into the clamping groove, which can also make the connection between the connecting rod and the clamping rod more stable.

[0017] By setting a sleeve rod, a button and a spring in conjunction with a connecting rod, the clamp head can be removed and replaced. When in use, press the button, the spring contracts, and the sleeve rod extends. Then loosen and remove the limit ring, pull the slider to disengage from the slide groove, and finally rotate the threaded rod to disengage the clamp head from the threaded rod. After replacing the new clamp head, align the slider with the slide groove and the threaded rod and insert it. Limit it with the limit ring, and push the connecting rod upward to make the button pop out of the slot. It is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a structural diagram of the connecting rod of the utility model.

[0020] Figure 3 It is the internal structure diagram of the sleeve rod of the utility model.

[0021] Figure 4 This is a side perspective view of the present utility model.

[0022] Figure 5 This is a front upward viewing angle diagram of the utility model.

[0023] Figure 6 For the utility model Figure 5 A is an enlarged view of the middle image.

[0024] Figure 7 It is the front view of the utility model.

[0025] In the figure: 1. clamping rod; 2. clamping head; 3. connecting sleeve; 4. fixing block; 5. threaded rod; 6. connecting rod; 7. button; 8. slider; 9. limiting ring; 10. slide groove; 11. sleeve rod; 12. spring; 13. clamping block; 14. clamping groove. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-7 As shown, an adjustable step-by-step tightener includes a clamping rod 1, a clamping head 2 is sleeved on the outside of the clamping rod 1, a connecting sleeve 3 is fixedly installed on the bottom of the clamping head 2, a fixing block 4 is fixedly installed at the rear position of the bottom of the clamping rod 1, a threaded rod 5 is arranged under the clamping rod 1, the threaded rod 5 and the fixing block 4 are movably connected, and the threaded rod 5 and the connecting sleeve 3 are threadedly connected.

[0028] In this embodiment, two groups of connecting rods 6 are arranged below the card rod 1, and sleeve rods 11 are arranged at the rear position of the top of the two groups of connecting rods 6, and buttons 7 are arranged outside the sleeve rods 11, and slots matching the buttons 7 are opened outside the connecting rods 6.

[0029] By providing the button 7, when the sleeve rod 11 is retracted into the connecting rod 6, the connection thereof is made more stable.

[0030] In this embodiment, the top of the sleeve rod 11 is fixedly connected to the bottom of the clamping rod 1, and the two sets of sleeve rods 11 and the connecting rod 6 are symmetrically arranged.

[0031] By providing two groups of connecting rods 6 , the clamping head 2 can be limited, so that the movement of the clamping head 2 is more stable.

[0032] In this embodiment, a circular groove is provided at a lower position outside the sleeve rod 11, and the end of the button 7 is inserted into the circular groove.

[0033] When in use, the button 7 is pressed, the button 7 shrinks, the connecting rod 6 is pulled, and the sleeve rod 11 extends out from the connecting rod 6 .

[0034] In this embodiment, a spring 12 is disposed in the circular groove, one end of the spring 12 is fixedly connected to the sleeve rod 11 , and the other end of the spring 12 is fixedly connected to the button 7 .

[0035] When the button 7 is pressed, the spring 12 is compressed and contracts, and the button 7 will shrink into the circular groove.

[0036] In this embodiment, a slide groove 10 is opened at the front position of the bottom of the clamping rod 1, and the clamping rod 1 is connected to the slider 8 through the slide groove 10. The slider 8 is sleeved on the outside of the threaded rod 5, and the limit ring 9 is threadedly connected to the front position of the outside of the threaded rod 5.

[0037] The slider 8 enables the threaded rod 5 to remain stable, and at the same time, when the limiting ring 9 is loosened, the slider 8 can be removed.

[0038] In this embodiment, a clamping block 13 is fixedly installed at the front position of the top of the two groups of connecting rods 6, and a clamping groove 14 matching the clamping block 13 is opened through the bottom of the connecting rod 6.

[0039] By providing the clamping block 13 and the clamping slot 14 , the connection rod 6 can be clamped with the clamping rod 1 more stably.

[0040] It should be noted that the utility model is an adjustable step-by-step tightening. When in use, the clamping rod 1 and the clamping head 2 are placed outside the template that needs to be fixed, and the connecting sleeve 3 is moved by rotating the threaded rod 5. The movement of the connecting sleeve 3 drives the clamping head 2 to move. The movement of the clamping head 2 reduces the distance between the clamping head 2 and the clamping rod 1, thereby clamping the template. When the template needs to be loosened, the threaded rod 5 can also be directly rotated to move the clamping head 2, and the distance between the clamping head 2 and the clamping rod 1 can be increased.

[0041] After that, the chuck 2 is in a state of being worn out due to long-term use, the button 7 can be pressed, the spring 12 is forced to shrink, the button 7 shrinks back into the circular groove through the slot, and then the connecting rod 6 is pulled downward, the limiting ring 9 is loosened and removed, the slider 8 is pulled to disengage the slider 8 from the slide groove 10, and then the threaded rod 5 is rotated to move the connecting sleeve 3 and drive the chuck 2 to disengage from the card rod 1, and then a new chuck 2 is taken out, the chuck 2 is sleeved on the outside of the card rod 1, and the connecting sleeve 3 is aligned with the threaded rod 5, the threaded rod 5 is rotated to move the chuck 2, and then the slider 8 is aligned with the slide groove 10 and the threaded rod 5 and inserted, and finally it can be limited by the limiting ring 9, and then the connecting rod 6 is pushed upward to shrink the sleeve rod 11 back into the inside of the connecting rod 6, and the spring 12 is reset to make the button 7 pop out of the slot, and at the same time, the block 13 at the top of the connecting rod 6 will also be inserted into the card groove 14, so that the connection between the connecting rod 6 and the card rod 1 is more stable.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable step-by-step tightener, characterized in that: The invention comprises a clamping rod (1), wherein a clamping head (2) is sleeved on the outside of the clamping rod (1), a connecting sleeve (3) is fixedly installed on the bottom of the clamping head (2), a fixing block (4) is fixedly installed at the rear position of the bottom of the clamping rod (1), a threaded rod (5) is arranged below the clamping rod (1), the threaded rod (5) and the fixing block (4) are movably connected, and the threaded rod (5) and the connecting sleeve (3) are threadedly connected.

2. The adjustable step-by-step tightener according to claim 1, characterized in that: Two groups of connecting rods (6) are arranged below the clamping rod (1), sleeve rods (11) are arranged at the rear position of the tops of the two groups of connecting rods (6), and buttons (7) are arranged outside the sleeve rods (11), and slots matching the buttons (7) are opened outside the connecting rods (6).

3. The adjustable step-by-step tightener according to claim 2, characterized in that: The top of the sleeve rod (11) is fixedly connected to the bottom of the clamping rod (1), and the two sets of sleeve rods (11) and the connecting rod (6) are symmetrically arranged.

4. The adjustable step-by-step tightener according to claim 3, characterized in that: A circular groove is provided at a lower position outside the sleeve rod (11), and the end of the button (7) is inserted into the circular groove.

5. The adjustable step-by-step tightener according to claim 4, characterized in that: A spring (12) is arranged in the circular groove, one end of the spring (12) is fixedly connected to the sleeve rod (11), and the other end of the spring (12) is fixedly connected to the button (7).

6. The adjustable step-by-step tightener according to claim 1, characterized in that: A slide groove (10) is provided at a front position on the bottom of the clamping rod (1), and the clamping rod (1) is connected to a slider (8) via the slide groove (10). The slider (8) is sleeved on the outside of the threaded rod (5), and a limit ring (9) is threadedly connected to the outside of the threaded rod (5) at a front position.

7. The adjustable step-by-step tightener according to claim 3, characterized in that: A clamping block (13) is fixedly mounted at the front position of the top of the two groups of connecting rods (6), and a clamping groove (14) matching the clamping block (13) is provided through the bottom of the connecting rod (6).

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