Thread adjustment and pressure spring pre-tightening type knob assembly

Abstract

The utility model discloses a thread adjustment and pressure spring pre-tightening type knob assembly, which relates to the technical field of breeding equipment and comprises a nut fixing cap and a bolt adjusting piece which are detachably connected together. The nut fixing cap is provided with a threaded hole for screwing the bolt, and an internal thread is arranged in the threaded hole; the bolt adjusting piece comprises a bolt rod and a bolt head connected to the top end of the bolt rod, and external threads are arranged on the bolt rod. The upper end of the compression spring abuts against the bottom face of the bolt head, and the lower end of the compression spring abuts against the top face of the nut fixing cap. The knob assembly is improved on the basis of the existing structure, so that the knob assembly is more convenient to install, and the problems that the knob assembly is not easy to install in place in the installation process and is easy to break and lose in the use process are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a breeding equipment technical field, concretely relates to a screw thread adjustment and compression spring pre-tightening type knob assembly. BACKGROUND

[0002] The knob assembly comprises a nut fixing cap and a bolt adjusting piece which are detachably connected together, is used for keeping the close connection and stable support between the two components, and is suitable for various occasions requiring fine adjustment or fixed position, such as the lower net door adjusting system of the meat poultry cage breeding equipment.

[0003] At present, the adjusting plate knob used by most manufacturers comprises four parts, namely a bolt adjusting piece 2, a nut fixing cap 1, a reverse buckle 6 and a compression spring 3, the reverse buckle 6 is screwed on the outside of the nut fixing cap 1, the inner hole of the reverse buckle 6 is provided with a barb 601, the end of the screw rod of the bolt adjusting piece 2 is provided with a step 205, the barb 601 is buckled with the step 205, so that the bolt adjusting piece 2 and the nut fixing cap 1 are connected together to complete the assembly. Figure 1 However, the structure has the following disadvantages: the barb is arranged in the inside of the reverse buckle, so that the inside of the reverse buckle cannot be observed during installation, and the barb is not buckled in place during installation, so that the knob assembly is easily broken and lost during use, and safety hazards are caused. CONTENT

[0004] The utility model aims at providing a screw thread adjustment and compression spring pre-tightening type knob assembly, which is improved on the basis of the existing structure, so that the installation of the knob assembly is more convenient, and the problems that the knob assembly is not easily installed in place during installation and is easily broken and lost during use are solved.

[0005] The utility model comprises a nut fixing cap and a bolt adjusting piece which are detachably connected together, the nut fixing cap is provided with a threaded hole for screwing a bolt, the threaded hole is provided with an internal thread, the bolt adjusting piece comprises a bolt rod and a bolt head connected to the top end of the bolt rod, the bolt rod is provided with an external thread, and the bolt rod is provided with a compression spring which is sleeved on the bolt rod and has an upper end abutting against the bottom surface of the bolt head and a lower end abutting against the top surface of the nut fixing cap.

[0006] Preferably, the lower end of the bolt rod is provided with a tensioning slot extending upward from the bottom surface of the bolt rod, the threaded hole of the nut fixing cap is a counterbore extending downward from the top surface, and the bottom surface of the counterbore is provided with a tensioning column extending upward, and the tensioning column extends into the tensioning slot.

[0007] Preferably, the tensioning column is in a cylindrical shape.

[0008] Preferably, the tensioning column is conical with a diameter gradually decreasing from the bottom of the threaded hole upwards.

[0009] Preferably, the lower end of the bolt head is provided with an annular accommodating cavity extending upwards from the bottom of the bolt head, and the upper end of the compression spring is fixed in the annular accommodating cavity.

[0010] Preferably, the top of the nut fixing cap is provided with an annular clamping disc, and at least one limiting slot is arranged on the clamping disc and penetrates through opposite sides of the clamping disc.

[0011] Preferably, the number of limiting slots is multiple, and the limiting slots are uniformly distributed on the circumference of the clamping disc.

[0012] In summary, the utility model has the following beneficial effects:

[0013] 1. The knob assembly is composed of a nut fixing cap, a bolt adjusting part and a compression spring, the nut fixing cap and the bolt adjusting part are screwed together, the problems that the knob assembly is not easy to be installed in place in the installation process and is easy to be broken and lost in the use process in the prior art are solved, the installation of the knob assembly is more convenient, and the use is safer and more reliable.

[0014] 2. The compression spring is arranged between the nut fixing cap and the bolt adjusting part, the compression spring provides a pre-tightening force, so that the breeding personnel can lift and lower the net door adjusting plate without loosening the knob, the labor intensity is greatly reduced, and the work efficiency is improved.

[0015] 3. The nut fixing cap is provided with a clamping disc, and the clamping disc is provided with a limiting slot, and the limiting slot is used in cooperation with the vertical silk of the lower net, so that the problem of rotation loosening of the assembly caused by external force is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure diagram of the knob assembly currently used in the background art is shown;

[0017] Figure 2 The installation diagram of the threaded adjusting and compression spring pre-tightening type knob assembly Figure 1 ;

[0018] Figure 3 The installation diagram of the threaded adjusting and compression spring pre-tightening type knob assembly Figure 2 ;

[0019] Figure 4 The structure diagram of the threaded adjusting and compression spring pre-tightening type knob assembly of the utility model is shown;

[0020] Figure 5 The sectional view of Figure 4 ;

[0021] Figure 6It is a schematic view of the bolt adjusting member.

[0022] In the figure: 1, nut fixing cap; 101, threaded hole; 102, tensioning column; 103, clamping disc; 104, limiting groove; 2, bolt adjusting member; 201, bolt rod; 202, bolt head; 203, tensioning slot; 204, annular accommodating cavity; 205, step; 3, compression spring; 4, lower net door adjusting plate; 5, lower net door vertical wire; 6, reverse buckle; 601, barb. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings.

[0024] The directions involved in the specification are accurate in the normal working direction of the threaded adjusting and compression spring pre-tightening type knob assembly, and are not limited to the directions during storage and transportation, and only represent relative positional relationships, not absolute positional relationships.

[0025] As Figures 2 to 6 As shown in the drawings, a threaded adjusting and compression spring pre-tightening type knob assembly comprises a nut fixing cap 1 and a bolt adjusting member 2 which are detachably connected together; the nut fixing cap 1 is provided with a threaded hole 101 for screwing a bolt, and the threaded hole 101 is provided with an internal thread; the bolt adjusting member 2 comprises a bolt rod 201 and a bolt head 202 connected to the top end of the bolt rod 201, and the bolt rod 201 is provided with an external thread; the nut fixing cap 1 and the bolt adjusting member 2 are connected together through threads, the internal thread and the external thread are engaged or separated by rotating the nut fixing cap 1, and the fastening or loosening of the knob assembly is realized.

[0026] The bolt rod 201 is sleeved with a compression spring 3, the upper end of the compression spring 3 abuts against the bottom surface of the bolt head 202, and the lower end of the compression spring 3 abuts against the top surface of the nut fixing cap 1, the compression spring 3 provides a continuous elastic force in the pre-tightening state, the position of the knob assembly relative to the bolt adjusting member 2 can be changed by rotating the nut fixing cap 1, the adjusting function of the knob assembly is realized, and at the same time, the tight connection and stable support between the two are maintained, and the knob assembly is suitable for various occasions requiring fine adjustment or fixed position, such as the lower net door adjusting system of poultry cage raising equipment.

[0027] The lower end of the bolt rod 201 is provided with a tension slot 203 extending upward from the bottom surface of the bolt rod 201, the tension slot 203 is arranged at the middle of the bolt rod 201 and extends to the bottom end of the bolt head 202, thereby dividing the bolt rod 201 into two symmetrical parts; when installing the knob assembly, the tension slot 203 is used to avoid the lower screen door vertical wire 5; the threaded hole 101 of the nut fixing cap 1 is a counterbore extending downward from the top surface, and the bottom surface of the counterbore is provided with a tension column 102 extending upward; in this embodiment, the tension column 102 is cylindrical, or is conical with a diameter gradually decreasing upward from the bottom surface of the threaded hole 101, or has other shapes capable of achieving the tensioning effect; the tension column 102 extends into the tension slot 203 and supports the tension slot 203, so that the bolt rod 201 is not easy to deform, and the connection between the bolt rod 201 and the nut fixing cap 1 is more secure and less likely to fall apart.

[0028] Further, the lower end of the bolt head 202 is provided with an annular accommodating cavity 204 extending upward from the bottom surface of the bolt head 202, and the upper end of the compression spring 3 is fixed in the annular accommodating cavity 204; the annular accommodating cavity 204 provides support and guiding for the compression spring 3 in the pre-tightened state, guides the compression spring 3 to the correct position during installation, prevents the compression spring 3 from being twisted or misaligned during installation, provides uniform stress for the compression spring 3 in the pre-tightened state, and improves the adjustment accuracy and stability of the knob assembly.

[0029] The top of the nut fixing cap 1 is provided with an annular clamping disc 103, and at least one limiting groove 104 is arranged on the clamping disc 103 and penetrates through opposite sides of the clamping disc 103; the limiting groove 104 is used to clamp the lower screen door vertical wire 5 or other components that need to be fixed, prevents the knob assembly from deviating or falling off during rotation and adjustment, and improves the stability and safety of the knob assembly.

[0030] Further, the number of limiting grooves 104 is multiple, and they are uniformly distributed on the circumference of the clamping disc 103 to provide multiple clamping angles and position options, meet different installation environments and use requirements, and enhance the versatility and flexibility of the knob assembly.

[0031] In specific implementation, the user can select appropriate installation methods and adjustment angles according to actual needs; for example, when installing the lower screen door adjusting plate 4, the bolt adjusting piece 2 can be fixed at a suitable position first, then the lower screen door vertical wire 5 is clamped into the tension slot 203, and the nut fixing cap 1 is rotated to tighten the knob assembly; when the height of the lower screen door adjusting plate 4 needs to be adjusted, the nut fixing cap 1 is only needed to be rotated again to achieve fine adjustment; the whole operation process is simple and convenient, and has high precision and stability.

[0032] In summary, the threaded adjustment, spring 3 pre-tightening type knob assembly improves the installation efficiency, reduces the risk of easy collapse and loss of the knob assembly in the use process; it is not only suitable for the lower net door adjusting system of the meat poultry cage breeding equipment, but also can be widely applied to other occasions which need fine adjustment or fixed position; through the implementation of the utility model, the stability of the knob assembly can be significantly improved, the loosening risk in the use process is reduced, and the overall use effect is improved.

[0033] Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by the skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A threaded adjustment and pre-tensioned spring knob assembly, characterized by: The nut fixing cap (1) and the bolt adjusting piece (2) are detachably connected together; the nut fixing cap (1) is provided with a threaded hole (101) for screwing a bolt, and the threaded hole (101) is internally provided with an internal thread; the bolt adjusting piece (2) comprises a bolt rod (201) and a bolt head (202) connected to the top end of the bolt rod (201), and the bolt rod (201) is externally provided with a thread; the bolt rod (201) is sleeved with a compression spring (3) with the upper end abutting against the bottom surface of the bolt head (202) and the lower end abutting against the top surface of the nut fixing cap (1).

2. A threaded adjustment and pre-tensioned spring knob assembly as defined in claim 1, wherein: The lower end of the bolt rod (201) is provided with a tension slot (203) extending upward from the bottom surface of the bolt rod (201); the threaded hole (101) of the nut fixing cap (1) is a counterbore extending downward from the top surface, and the bottom surface of the counterbore is provided with a tension column (102) extending upward, and the tension column (102) extends into the tension slot (203).

3. A threaded adjustment and pre-tensioned spring knob assembly as defined in claim 2 wherein: The tension column (102) is cylindrical.

4. A threaded adjustment and pre-tensioned spring knob assembly as defined in claim 2 wherein: The tension column (102) is conical with the diameter gradually decreasing upward from the bottom surface of the threaded hole (101).

5. A threaded adjustment and pre-tensioned spring knob assembly as defined in claim 1 wherein: The lower end of the bolt head (202) is provided with an annular accommodating cavity (204) extending upward from the bottom surface of the bolt head (202), and the upper end of the compression spring (3) is fixed in the annular accommodating cavity (204).

6. A threaded adjustment and pre-tensioned spring knob assembly as defined in claim 1 wherein: The top of the nut fixing cap (1) is provided with an annular clamping disc (103), and the clamping disc (103) is provided with at least one limiting groove (104) penetrating through the opposite sides of the clamping disc (103).

7. A threaded adjustment and pre-tensioned spring knob assembly as defined in claim 6 wherein: The number of the limiting grooves (104) is multiple, and they are uniformly distributed on the circumference of the clamping disc (103).

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