Four-way valve assembly for air-cooled screw heat pump unit

Abstract

The utility model relates to the field of heat pump units, in particular to a four-way valve assembly for an air-cooled screw heat pump unit, which comprises a main valve body, a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe and a control assembly, and the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all arranged on the peripheral side of the main valve body. The control assembly comprises a pilot valve body, a connecting component, a first signal pipe, a second signal pipe, a third signal pipe and a stabilizing component, and the first signal pipe and the second signal pipe form a certain angle with the connecting pipe through the optimal design of the pilot valve signal pipe, so that the influence of refrigeration oil and impurity accumulation on the end parts of the signal pipes is avoided; therefore, the induction sensitivity is improved, refrigerating and heating signals can be accurately switched, various jamming phenomena are completely eradicated, and the problems that due to the fact that refrigerant oil and impurities are prone to being accumulated in the main valve, normal work of a pilot valve signal pipe can be possibly affected, and signal transmission is delayed or inaccurate are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of heat pump unit especially relates to a four -way valve subassembly for air -cooled screw heat pump unit. BACKGROUND

[0002] Air-cooled screw heat pump unit as a kind of efficient, energy-saving cold and warm supply equipment, in commercial building, industrial plant and resident house and many other fields have been widely applied.It can realize the switching of refrigeration and heating function in different seasons, provide comfortable temperature adjustment for indoor environment, among the core components of air-cooled screw heat pump unit, four-way valve subassembly plays a very key role, it is mainly responsible for the flow switching of refrigerant in refrigeration system, to achieve the conversion of refrigeration and heating mode, is the key hub to ensure the normal operation of unit and realize multifunctional output.

[0003] Prior art CN220489440U discloses a four-way valve subassembly for air-cooled screw heat pump unit, the circuit board test fixture includes test docking assembly and test assembly, test docking assembly includes test mounting plate, test pin plate and multiple test pins, test mounting plate is used to fixedly connect the circuit board to be tested, test pin plate is provided with test hole more than test pin, multiple test pins are detachably arranged in test hole one by one, test mounting plate is movably connected to test pin, and it is configured to be able to move along first direction to test pin plate, so that multiple test pins are respectively electrically connected with test interface on the circuit board to be tested, wherein, first direction is the direction perpendicular to test pin plate and towards test pin plate, test assembly is respectively electrically connected with multiple test pins, and is used to test the circuit board to be tested.The circuit board test fixture has the characteristics of being able to adapt to multiple circuit boards to be tested and high utilization rate.

[0004] For the four-way valve subassembly for air-cooled screw heat pump unit of prior art, since frozen oil and impurities are easy to accumulate in the main valve, it may affect the normal work of pilot valve signal pipe, cause the delay or inaccuracy of signal transmission. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a four-way valve subassembly for air-cooled screw heat pump unit, solve the problem that frozen oil and impurities are easy to accumulate in the main valve, it may affect the normal work of pilot valve signal pipe, cause the delay or inaccuracy of signal transmission.

[0006] The utility model provides a four -way valve assembly for air -cooled screw heat pump unit, including main valve body, first connecting pipe, second connecting pipe, third connecting pipe, fourth connecting pipe and control assembly, first connecting pipe second connecting pipe third connecting pipe and fourth connecting pipe all set up in the circumferential side of main valve body, control assembly includes pilot valve body, connecting member, first signal pipe, second signal pipe, third signal pipe and stabilizing member, pilot valve body passes through connecting member and is connected with main valve body, connecting member is installed on main valve body, and supports pilot valve body, both ends of first signal pipe are connected with pilot valve body and main valve body respectively, both ends of second signal pipe are connected with main valve body and pilot valve body respectively, both ends of third signal pipe are connected with pilot valve body and fourth connecting pipe respectively, stabilizing member is installed on main valve body.

[0007] Among them, the connecting member includes support and mounting plate, the support is fixedly connected with the main valve body and located in the circumferential side of the main valve body, the mounting plate is fixedly connected with the support, and the pilot valve body is detachably connected with the mounting plate.

[0008] Among them, the stabilizing member includes hoop, clamping frame and damping piece, the hoop is detachably connected with the main valve body and located in the circumferential side of the main valve body, the clamping frame is connected with the main valve body through the damping piece, the damping piece is installed on the hoop and supports the clamping frame, and the clamping frame supports the first signal pipe, the second signal pipe and the third signal pipe.

[0009] Among them, the damping piece includes damper, fixed block and spring, the damper is fixedly connected with the hoop and located on the side of the hoop away from the main valve body, the fixed block is fixedly connected with the telescopic end of the damper, and the clamping frame is fixedly installed on the fixed block, and the spring is sleeved outside the damper and located between the hoop and the fixed block.

[0010] Among them, the stabilizing member further includes rubber pad, and the rubber pad is arranged on the clamping frame.

[0011] The utility model discloses a four -way valve subassembly for air -cooled screw heat pump unit, including main valve body, first connecting pipe, second connecting pipe, third connecting pipe, fourth connecting pipe and control assembly, first connecting pipe, second connecting pipe, third connecting pipe and fourth connecting pipe all set up in the circumferential side of main valve body, control assembly includes pilot valve body, connecting member, first signal pipe, second signal pipe, third signal pipe and stabilizing member, pilot valve body is connected with main valve body through connecting member, and connecting member is installed on main valve body, and supports pilot valve body, and the both ends of first signal pipe are connected with pilot valve body and main valve body respectively, and the both ends of second signal pipe are connected with main valve body and pilot valve body respectively, and the both ends of third signal pipe are connected with pilot valve body and fourth connecting pipe respectively, and stabilizing member is installed on main valve body, has solved because frozen oil and impurities are easy to accumulate in the inside of main valve, possibly influence pilot valve signal pipe's normal work, lead to the problem of signal transmission's delay or inaccuracy. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows.

[0013] Figure 1 It is the overall structure schematic diagram of four -way valve subassembly for air -cooled screw heat pump unit of the utility model.

[0014] Figure 2 It is the structure schematic diagram of first signal pipe and second signal pipe of the utility model.

[0015] Figure 3 It is the structure schematic diagram of stabilizing member of the utility model.

[0016] In the drawing: 101-main valve body, 102-first connecting pipe, 103-second connecting pipe, 104-third connecting pipe, 105-fourth connecting pipe, 106-pilot valve body, 107-bracket, 108-mounting plate, 109-first signal pipe, 110-second signal pipe, 111-third signal pipe, 112-hoop, 113-clamping frame, 114-damper, 115-fixed block, 116-spring, 117-rubber pad. DETAILED DESCRIPTION

[0017] The embodiment of the utility model is described in detail below, the example of the embodiment is shown in the drawing, the embodiment described below through the drawing is exemplary, and it is used to explain the utility model, and can not be understood as the limitation of the utility model.

[0018] The embodiment of the present application is:

[0019] Please refer to Figures 1-3 , Figure 1 It is the overall structure schematic view of the four-way valve assembly for the air-cooled screw heat pump unit of the utility model, Figure 2 It is the structure schematic view of the first signal pipe 109 and the second signal pipe 110 of the utility model, Figure 3 It is the structure schematic view of the stabilizing member of the utility model.

[0020] The four-way valve assembly for the air-cooled screw heat pump unit of the utility model, comprising a main valve body 101, a first connecting pipe 102, a second connecting pipe 103, a third connecting pipe 104, a fourth connecting pipe 105, a pilot valve body 106, a bracket 107, a mounting plate 108, a first signal pipe 109, a second signal pipe 110, a third signal pipe 111, a clamp 112, a clamping frame 113, a damper 114, a fixed block 115, a spring 116, a rubber pad 117, solves the problem that frozen oil and impurities are easy to accumulate inside the main valve, which may affect the normal work of the pilot valve signal pipe, leading to the delay or inaccuracy of signal transmission. It can be understood that the foregoing scheme can also be used to reduce the problem of four-way valve jamming.

[0021] In the embodiment, the first connecting pipe 102, the second connecting pipe 103, the third connecting pipe 104 and the fourth connecting pipe 105 are symmetrically arranged around the main valve body 101, and are installed on the main valve body 101 through the control assembly, thereby solving the problem that frozen oil and impurities are easy to accumulate inside the main valve, which may affect the normal work of the pilot valve signal pipe, leading to the delay or inaccuracy of signal transmission.

[0022] Wherein, the pilot valve body 106 is connected with the main valve body 101 through the connecting member, the connecting member is installed on the main valve body 101 and supports the pilot valve body 106, two ends of the first signal pipe 109 are respectively communicated with the pilot valve body 106 and the main valve body 101, two ends of the second signal pipe 110 are respectively communicated with the main valve body 101 and the pilot valve body 106, two ends of the third signal pipe 111 are respectively communicated with the pilot valve body 106 and the fourth connecting pipe 105, the stabilizing member is installed on the main valve body 101, the pilot valve body 106 is fixed on the main valve body 101 through the connecting member, the connecting member provides installation conditions for the pilot valve body 106, one end of the first signal pipe 109 is connected with the pilot valve body 106 and the other end extends into the main valve body 101, the first signal pipe 109 is not parallel to any one of the first connecting pipe 102, the second connecting pipe 103, the third connecting pipe 104 and the fourth connecting pipe 105, one end of the second signal pipe 110 is connected with the pilot valve body 106 and the other end extends into the main valve body 101, the installation posture of the first signal pipe 109 and the second signal pipe 110 is same, and there is a certain spacing between the first signal pipe 109 and the second signal pipe 110, one end of the third signal pipe 111 is connected with the pilot valve body 106 and the other end extends into the fourth connecting pipe 105, the stabilizing member is three groups and is used for providing support for the first signal pipe 109, the second signal pipe 110 and the third signal pipe 111, through the optimized design of the pilot valve signal pipe, the first signal pipe 109 and the second signal pipe 110 are at a certain angle with the connecting pipe, so that the influence of the accumulation of frozen oil and impurities on the end of the signal pipe is avoided, the sensing sensitivity is improved, the signal of accurately switching refrigeration and heating can be obtained, all kinds of jamming phenomena are avoided, and the problems that the frozen oil and impurities are easily accumulated in the main valve and may affect the normal work of the pilot valve signal pipe, causing the delay or inaccuracy of signal transmission are solved.

[0023] Secondly, the bracket 107 is fixedly connected with the main valve body 101 and located at the periphery of the main valve body 101, the mounting plate 108 is fixedly connected with the bracket 107, the pilot valve body 106 is detachably connected with the mounting plate 108, the bracket 107 and the mounting plate 108 provide installation conditions for the pilot valve body 106, the pilot valve body 106 is fixed on the mounting plate 108 through bolts, and the pilot valve body 106 and the main valve body 101 can be stably connected through the bracket 107 and the mounting plate 108.

[0024] Meanwhile, the clamp 112 is detachably connected with the main valve body 101 and located at the periphery of the main valve body 101; the clamping frame 113 is connected with the main valve body 101 through the damping member, the damping member is installed on the clamp 112 and supports the clamping frame 113, the clamping frame 113 supports the first signal pipe 109, the second signal pipe 110 and the third signal pipe 111, the clamp 112 is sleeved outside the main valve body 101, the clamping frame 113 is annular and matched with a locking bolt, the first signal pipe 109, the second signal pipe 110 or the third signal pipe 111 can penetrate through the clamping frame 113, then the locking bolt is tightened, so that the clamping frame 113 is connected with the first signal pipe 109, the second signal pipe 110 and the third signal pipe 111, the damping member can play a damping role, so as to avoid that the first signal pipe 109, the second signal pipe 110 and the third signal pipe 111 are loosened due to excessive vibration.

[0025] In addition, the damper 114 is fixedly connected with the clamp 112 and located at the side, away from the main valve body 101, of the clamp 112; the fixed block 115 is fixedly connected with the telescopic end of the damper 114, the clamping frame 113 is fixedly installed on the fixed block 115; the spring 116 is sleeved outside the damper 114 and located between the clamp 112 and the fixed block 115, the fixed block 115 is circular and fixedly connected with the clamping frame 113, one end of the damper 114 is fixedly connected with the clamp 112 and the other end is fixedly connected with the fixed block 115, the spring 116 is sleeved outside the damper 114, cooperates with the damper 114 and the spring 116, so as to play a damping role.

[0026] Finally, the rubber pad 117 is arranged on the clamping frame 113, the rubber pad 117 is installed on the inner wall of the clamping frame 113 in a bonding mode, after the first signal pipe 109, the second signal pipe 110 and the third signal pipe 111 are connected with the clamping frame 113, the rubber pad 117 is located between the signal pipes and the clamping frame 113, cooperates with the rubber pad 117, so as to improve the stability of clamping.

[0027] In the embodiment, the application can realize automatic conversion between refrigeration and heating, cross large flow channel design, greatly reduce the reversing resistance, the optimized structure can ensure installation in any direction, normal reversing, and through the optimization design of the pilot valve signal pipe, the first signal pipe 109 and the second signal pipe 110 are at a certain angle with the connecting pipe, so as to avoid the influence of frozen oil and impurities accumulation on the end of the signal pipe, so as to improve the sensing sensitivity, can accurately switch the refrigeration and heating signal, eliminate all kinds of jamming phenomenon, solve the problem that the frozen oil and impurities are easy to accumulate in the main valve, which may affect the normal work of the pilot valve signal pipe, cause the delay or inaccuracy of signal transmission.

[0028] The above disclosure is only one or more preferred embodiments of the application, which cannot limit the scope of the application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. A four-way valve assembly for an air-cooled screw heat pump unit, comprising a main valve body, a first connecting pipe, a second connecting pipe, a third connecting pipe and a fourth connecting pipe, the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all arranged on the circumferential side of the main valve body, characterized in that, it further comprises a control assembly; The control assembly comprises a pilot valve body, a connecting member, a first signal pipe, a second signal pipe, a third signal pipe and a stabilizing member, the pilot valve body is connected with the main valve body through the connecting member, the connecting member is installed on the main valve body and supports the pilot valve body, the two ends of the first signal pipe are respectively communicated with the pilot valve body and the main valve body, the two ends of the second signal pipe are respectively communicated with the main valve body and the pilot valve body, the two ends of the third signal pipe are respectively communicated with the pilot valve body and the fourth connecting pipe, and the stabilizing member is installed on the main valve body.

2. The four-way valve assembly for the air-cooled screw heat pump unit according to claim 1, characterized in that, The connecting member comprises a bracket and a mounting plate, the bracket is fixedly connected with the main valve body and located on the circumferential side of the main valve body; the mounting plate is fixedly connected with the bracket, and the pilot valve body is detachably connected with the mounting plate.

3. The four-way valve assembly for the air-cooled screw heat pump unit according to claim 1, characterized in that, The stabilizing member comprises a hoop, a clamping frame and a damping piece, the hoop is detachably connected with the main valve body and located on the circumferential side of the main valve body; the clamping frame is connected with the main valve body through the damping piece, the damping piece is installed on the hoop and supports the clamping frame, and the clamping frame supports the first signal pipe, the second signal pipe and the third signal pipe.

4. The four-way valve assembly for the air-cooled screw heat pump unit according to claim 3, characterized in that, The damping piece comprises a damper, a fixed block and a spring, the damper is fixedly connected with the hoop and located on the side of the hoop away from the main valve body; the fixed block is fixedly connected with the telescopic end of the damper, and the clamping frame is fixedly installed on the fixed block; the spring is sleeved outside the damper and located between the hoop and the fixed block.

5. The four-way valve assembly for the air-cooled screw heat pump unit according to claim 3, characterized in that, The stabilizing member further comprises a rubber pad, and the rubber pad is arranged on the clamping frame. ​

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